2006

Respirator Selection Guide

3
Table of Contents Respirator Selection Criteria ................................................................................1
• Respirator Program Management
• Respirator Fit
• Protection Factors
• Effects from Skin or Eye Contact
• Worker Activity
• Location of Hazardous Areas
• Respirator Characteristics, Capabilities, and Limitations
• General Use Instructions
• General Use Limitations
Format Explanation ................................................................................................3
• Chemical Name
• IDLH Level
• Odor Threshold
• OEL
• Synonyms
• Respirator Recommendations
• Comments
Respirator Filter Definitions ................................................................................10
• 3M 42 CFR 84 Filters
–N-Series Filters
–R-Series Filters
–P-Series Filters
How to Use This Guide ........................................................................................11
Chemical Compound Guide ................................................................................15
3M™ Health and Safety Software Library ..........................................................97
• 3M™ Select Software©
• 3M™ Respirator Compliance Software
• 3M™ Hearing Compliance Software
3M™ Respiratory Protection Training Courses ................................................101
© 3M 2006 Respirator Codes and Descriptions ........................................inside back cover
 1

Respirator Selection Criteria

The 3M™ Respirator Selection Guide Respirator Fit Supplied Air Respirators (airline)
includes a list of chemicals for which 3M The OSHA Respiratory Protection Standard • Continuous Flow
respirators can be recommended. This (29 CFR 1910.134) requires fit testing for –Loose-fitting facepiece
information can be used to supplement all tight-fitting respirators. Whether you (e.g., L-501) ....................................25
general industrial hygiene knowledge. select a maintenance-free or a reusable –Half facepiece..................................50
Once workplace contaminants and their respirator, the wearer must obtain a satisfac- –Full facepiece, helmet,
concentrations have been identified, the tory fit as indicated by a qualitative or or hood ........................................1000
guide can be used to help select an quantitative fit test. Worker comfort must • Pressure Demand with
appropriate 3M™ Respirator for nearly also be considered. Removal of the respira- Full facepiece ....................................1000
700 chemicals with Threshold Limit tor, even for short periods of time, dramati- Pressure Demand Airline with Escape
Values (TLVs ) or other recommended
®
cally reduces the protection afforded by SCBA ..........................................10,000,
exposure limits. the respirator. unknown and IDLH atmospheres
Pressure Demand SCBA ..............10,000,
Because actual conditions vary from one Protection Factors unknown and IDLH atmospheres
worksite to another, this information is The respirator selected must have an
intended only as a guide. Selection of the assigned protection factor adequate for Effects From Skin or Eye
most appropriate respirator will depend on the particular workplace exposure. Contact
the particular situation and should be made Divide the air contaminant concentration If a chemical can be absorbed through the
only by a person familiar with the working by the occupational exposure limit (OEL) skin, skin protection may be required in
conditions and with the benefits and limita- to obtain a hazard ratio. Then select a addition to respiratory protection. Eye
tions of respiratory protection products. If respirator with an assigned protection protection may also be necessary if not
you have any questions related to proper factor greater than or equal to that provided by the respirator. Failure to
selection and use of 3M respirators, or the hazard ratio. provide adequate skin or eye protection

use of this guide, contact your local Hazard Ratio can invalidate established exposure limits
3M OH&ESD representative or call our Airborne Contaminant Concentration and make respirator use ineffective for
3M OH&ESD Technical Service Line at = protection against certain workplace
1-800-243-4630. contaminants.
OEL
Respirator Program Human Factors
Management Consider the entire package of safety
Where respirators are in use in the work- Assigned protection factors* currently equipment required for the job. The respira-
place, a formal respiratory protection recommended by 3M are as follows: tor selected must be compatible with hard
program must be established covering the hats, goggles, glasses, welding hoods,
basic requirements outlined in the OSHA Air Purifying Respirators faceshields, etc. In addition, the worker
Respiratory Protection Standard (29 CFR • Half facepiece (maintenance-free and must be able to communicate and perform
1910.134). Education and training must be dual cartridge)......................................10 required job duties without removing the
properly emphasized and conducted period- • Full facepiece ........................................50 respirator. If strenuous work is to be
ically. Maintenance, cleaning, and storage Powered Air Purifying Respirators performed, or if the respirator is to be worn
programs must be established and routinely • Loose-fitting facepiece (e.g., H-200, for an extended period of time, it may be
followed for reusable respirators. Airstream™) ..........................................25 desirable to select a lightweight respirator
• Half facepiece........................................50 with low breathing resistance. If a respirator
• Full facepiece, helmet, does not have good worker acceptance and
or hood ............................................1000 does not stay on the worker’s face, it will
not provide the protection needed.
*Assigned protection factors may vary for specific standards as promulgated by OSHA (e.g., continuous flow supplied air respirators are assigned a
protection factor of 100 in the OSHA Asbestos Standards, 29 CFR 1910.1001 and 29 CFR 1926.1101). Where assigned protection factors in local,
state, or federal standards are lower than those listed here, they should be used instead. For additional limitations of 3M respiratory protection
products, refer to 3M respirator packaging and use instructions and limitations.

Respirator Selection Criteria 2

 3

Location Of Hazardous Area which they have been approved or

When specifying supplied air respirators, recommended.
consider the distance the worker must
travel to get to an uncontaminated work General Use Instructions WARNING
area, as well as obstacles or equipment • Failure to follow all instructions and
present in the area. If ladders or scaffolds limitations on the use of these respirators These respirators help protect
must be climbed, an air purifying respirator and/or failure to wear them during all against airborne particles or gases
or a combination air purifying/airline times of exposure can reduce respirator and vapors only. Many of these
respirator may be appropriate. effectiveness and may result in sickness substances can cause serious
or death. health effects, including sickness or
Respirator Characteristics, • Many of the contaminants that can be death. Misuse of a respirator
Capabilities, and Limitations dangerous to a person’s health include may result in sickness or death.
A respirator may not be able to help protect the ones that are so small they cannot be For proper use, see a supervisor,
against all of the contaminants present in a seen or smelled at dangerous levels. refer to the respirator package, or
particular work environment. Specific • Before use of any respirator, the wearer call 3M OH&ESD Technical Service
limitations are stated on the approval labels must first be trained by the employer in at 1-800-243-4630.
and are included with use instructions and proper respirator use in accordance with
limitations. These must be carefully applicable safety and health standards.
reviewed for each respirator before use. • The OSHA Respiratory Protection Format Explanation
General precautionary information is given Standard [29 CFR 1910.134(f)(1)]
below. Refer to respirator packaging or requires that the wearer of any Chemical Name
operating manuals for specific information. tight-fitting respirator be fit tested. Chemical names listed in this guide are
• Leave the contaminated area generally those used in the Threshold Limit
immediately if dizziness or other distress Values and Biological Exposure Indices for
2005 published by the American

occurs, if the respirator becomes Conference of Governmental Industrial

damaged or breathing becomes difficult, Hygienists (ACGIH). Pesticides and
if contaminants can be smelled or tasted, chemicals without established occupational
WARNING or if irritation occurs. exposure limits are not included. Call 3M
No respirator is capable of prevent- OH&ESD Technical Service for assistance
General Use Limitations in selecting respirators for these chemicals.
ing all airborne contaminants from
• These respirators do not supply oxygen.
entering the wearer’s breathing
• Do not use when concentrations of con- IDLH Level
zone. Respirators help protect
taminants are immediately dangerous to This is the concentration considered
against certain airborne contami-
life or health, when concentrations are Immediately Dangerous to Life or Health
nants by reducing airborne
unknown, or in atmospheres containing (IDLH), as published by the National
contaminant concentrations in the
less than 19.5% oxygen, unless using an Institute for Occupational Safety and Health
breathing zone to below the TLV or
SCBA or combination airline/SCBA. (NIOSH) (DHHS [NIOSH] Publication No.
other recommended exposure level.
• Do not abuse or misuse any respirator. 90-117). It specifically refers to the acute
Misuse of respirators may result
• Do not use tight-fitting respirators or respiratory exposure that poses an
in overexposure to the contam-
loose-fitting facepieces with beards or immediate threat of loss of life, immediate
inant and cause sickness or
other facial hair or conditions that or delayed irreversible adverse effects on
death. For this reason, proper
prevent direct contact between the face health, or acute eye exposure that would
respirator selection, training, use,
and the edge of the respirator. prevent escape from a hazardous atmo-
and maintenance are mandatory
• Do not use when concentrations exceed sphere. The reasons NIOSH established an
in order for the wearer to be
maximum use concentrations established IDLH at a particular level for a specific
properly protected.
by regulatory agencies. chemical are described in Documentation
for Immediately Dangerous to Life or
Use these respirators only for those Health Concentrations (IDLHs), NTIS
specific chemical compounds for Publication No. PB-94-195047, May 1994.

Format Explanation 4
 5

The 1994 IDLH values established by sources, the other references were used. A • The 2004 Workplace Environmental
NIOSH used interim criteria, and OSHA few odor thresholds published in other Exposure Levels (WEEL) from the
stated in a May 21, 1996 memorandum documents were used when not listed in the American Industrial Hygiene Association
that OSHA will use the older IDLH values references below (e.g., AIHA WEEL is listed when it is the most stringent
while NIOSH conducts further study documentation). The method of defining value or there is no TLV or PEL.
regarding the 1994 values. The 1990 IDLH and determining odor thresholds varies • The occupational exposure limits refer
values are used in this guide since OSHA widely, thereby giving rise to a significant to Time Weighted Average (TWA)
uses these values for enforcement. For range of reported odor thresholds for many concentrations for a normal eight (8) hour
those substances with no IDLH listed, the substances. Individuals may also respond workday and a forty (40) hour workweek,
manufacturer or supplier may have differently to the same odor. At a given unless referenced as a ceiling or STEL.
additional chemical information. The concentration, one person may smell and • Ceiling OELs refer to concentrations that
Chemical Referral Center operated by the recognize the odor, while another person should not be exceeded during any part
Chemical Manufacturers Association can may barely notice it. The odor thresholds of the working exposure.
assist in providing telephone numbers for reported in the literature are typically • Short-Term Exposure Limit (STEL) is
obtaining information from manufacturers. determined for a single constituent, with no a 15-minute time weighted average
The lower explosive level (LEL) and the other chemicals present in the air. The exposure which should not be exceeded
concentration that would result in an single constituent situation rarely occurs in at any time during a workday.
oxygen deficient atmosphere should also be the workplace. Therefore, caution must be • Skin notations indicate the substance can
considered to be IDLH. exercised in using these numbers. They be absorbed through the skin. In these
may not be representative of odor detection cases, appropriate measures must be
Odor Threshold* capabilities of individual workers in your taken to prevent skin and eye contact to
Odor thresholds can no longer be used as facilities. On the other hand, experience avoid invalidating the OEL.
the primary indicator for changing gas and may indicate better warning properties than • For a more detailed explanation of TLVs
vapor cartridges as a result of the revised what is indicated by the reported value. and their proper application, refer to the
OSHA standard, 29 CFR 1910.134. The TLV booklet available for a nominal fee
respirator program administrator, using

objective data and information, must now OEL from ACGIH, 1330 Kemper Meadow
establish chemical cartridge change • The occupational exposure limits listed Drive, Cincinnati, OH 45240.
schedules. The established change schedule are 2005 ACGIH Threshold Limit
should result in replacing the cartridges Values (TLVs), unless otherwise stated. Synonyms
with new ones before their service life is The concentrations are expressed in ppm Several common synonyms are listed in
depleted under the conditions of that —parts per million (parts of contaminant this column.
workplace. Reported odor thresholds will per million parts of air) — unless
continue to be listed in the guide because specifically stated as mg/m3 (milligrams Respirator Recommendations
odor can be useful as a secondary or of contaminant per cubic meter of air) or (to 10X OEL)
backup indicator for cartridge change-out. some other unit. This column lists the 3M recommended
The primary references for odor thresholds • An asterisk(*) indicates that the TLV is respirator for exposure levels not exceeding
were VOCBASE and an American lower than the PEL. ten times (10X) the OEL. Do not exceed
Industrial Hygiene Association (AIHA) • The OSHA Permissible Exposure Limit maximum use concentrations established
publication. When an odor threshold value (PEL) is listed when it is more stringent by regulatory agencies. When a
was not published in either of these two than the current TLV. chemical cartridge respirator is

*Odor Threshold References 4. Fazzuluri, F.A. Compilation of Odor and Taste 9. Gemert, L.J. Van and A.H. Nettenbreijer.
1. Jensen, B., and P. Wolkoff. VOCBASE: Odor Threshold Values Data. American Society for Compilation of Odor Threshold Values in Air and
Thresholds, Mucous Membrane Irritation Testing and Materials (1978). Water. CIVO-TNO, Netherlands (1977).
Thresholds and Physio-Chemical Parameters of 5. Verschueren, K. Handbook of Environmental Data 10. Gemert, L.J. Van. Compilation of Odor Threshold
Volatile Organic Compounds. [Computer on Organic Chemicals. pp. 12-21. Van Nostrand Values in Air, Supplement IV, CIVO-TNO, Zeist,
Software]. National Institute of Occupational Reinhold, NY (1977). Netherlands (1982).
Health, Denmark, 1996. 6. Warning Properties of Industrial Chemicals— 11. Workplace Environmental Exposure Levels,
2. Odor Thresholds for Chemicals with Established Occupational Health Resource Center, Oregon American Industrial Hygiene Association (2005).
Occupational Health Standards. American Lung Association. 12. Ruth, J.H. Odor Thresholds and Irritation Levels of
Industrial Hygiene Association (1989). 7. Electrical Safety Practices, ISA Monograph #113 Several Chemical Substances: A Review. Am. Ind.
3. Amoore, J.E. and E. Hautula. Odor as an Aid to (1972). Hyg. Assoc. J. 47(3):A-142-A-151 (1986).
Chemical Safety. J. Appl. Toxicol. 8. Documentation of TLVs and BEIs. American
3(6):272-290 (1983). Conference of Governmental Industrial
Hygienists. 7th edition (2005).
6
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recommended (e.g., OV) it can only be Respirator Selection Criteria and How approvals for that particular substance
used if a cartridge change schedule is To Use This Guide sections of this guide. only. All respirators listed in this guide
established as described in 29 CFR are NIOSH approved for specific
1910.134 (d)(3)(iii) (B)(2). If a change Comments substances and/or conditions.
schedule is not established, an airline Other information may be listed in this C. References to warning refer to odor or
respirator must be used. The SA code column: irritation warning properties of the
indicates that chemical cartridge respirators A. Short service life means predicted substances. Where listed as unknown,
should not be used. Generally this is cartridge life of less than 30 minutes no literature reference was located.
because of one of the three reasons at concentrations of ten times (10X) Where listed as questionable, a wide
described in the Comments column. These the OEL. Actual service life will vary range of reported odor thresholds exists.
recommendations are valid only if the considerably, depending on concentra- Air purifying respirators may be
respirator selection process outlined on tion levels, temperature, humidity, work acceptable for these substances if you
pages 11-14 is followed. The abbreviations rate, etc. See the following literature follow the requirements for establishing
used are explained in the Respirator references for specific details on the a change schedule acceptable to OSHA.
Identification Key in the back pocket insert. conditions and limitations of these D. These compounds have been identified
All of these respirators have not been estimates: as possibly existing in both particulate
specifically tested against each compound 1. 3M Company. 3M Respirator and vapor phase by a method published
listed. A review of chemical and physical Service Life. [Computer Software] by Perez and Soderholm. For these
properties of the materials, as well as 3M OH&ESD, www.3M.com/ compounds, 3M recommends that a
adsorption or filtration characteristics of the OccSafety. gas/vapor cartridge be used in addition
respirators, forms the basis for the 2. Smoot, D.M. Organic Vapor to the traditionally accepted particulate
recommendations. The recommendations Respirator Service Life Prediction. filter. It is the user’s responsibility to
are for single substances. When two or Prepared Under NIOSH Contract determine whether both forms coexist.
more substances are present, a combination No. 210-76-0108. Published Both chemical properties and use
respirator may be appropriate. October 1977. conditions/processes can affect the

For example, with a spray paint that 3. Nelson, G.O. and C.A. Harder. physical form in the workplace. Users
contains organic solvents and titanium Respirator Cartridge Efficiency should consider specific exposure data
dioxide, a respirator consisting of an Studies: V. Effect of Solvent Vapor. and workplace conditions before
organic vapor cartridge and a filter may Am. Ind. Hyg. Assoc. J. 35(7): making their final selection. If a
be appropriate. 391-410 (1974). chemical cartridge is used, a change
Typically, an airline respirator is schedule must be established to replace
In cases where an air purifying respirator is recommended because the service the cartridges before the end of their
not available for all of the substances of life may be so short that the frequency service life.*
concern in a mixture, a supplied air required for changing the cartridges E. These compounds have been identified
respirator may be required. In some cases, may not be practical. as possibly existing in both vapor and
the respirator is preceded by an “(F)” particulate phase in the workplace by
designation. The Identification Key lists References to Ineffective sorbents or Perez and Soderholm. Even though
these respirators as full facepiece air Unknown sorbent effectiveness these chemicals would be expected to be
purifying respirators. For concentrations indicate 3M does not make chemical in the vapor phase, when other aerosols
not exceeding ten times (10X) the OEL, cartridge respirators appropriate for are present or there is high humidity, it
half facepiece respirators (maintenance- these substances at this time or it is not is possible that the vapor may be
free or reusable) with equivalent filters known how effective the sorbents adsorbed onto these coexisting particles
or cartridges may be suitable if appro- would be for these materials. 3M or dissolved in available water droplets;
priate eye protection is provided. does not recommend using a chemical therefore, 3M recommends a filter for
cartridge respirator or attempting to the particulate phase be used in addition
For concentrations greater than ten times establish a change schedule for these to the traditionally accepted chemical
(10X) the OEL, follow the protection fact chemicals. cartridge. It is the user’s responsibility
or guidelines in specific OSHA standards, B. References to a respirator not being to determine whether both forms
or refer to the instructions in the specifically approved refer to coexist. Both chemical properties and

* See Perez, C. and S. C. Soderholm: Some Chemicals Requiring Special Consideration When Deciding Whether to Sample the Particle, Vapor, or Both Phases
of an Atmosphere. Appl. Occup. Hyg. 6(10): 859-864 (1991).
8
 9

use conditions/processes can affect the aerosols. They may be used for any solid or damaged, or becomes difficult to breathe
physical form in the workplace. Users liquid airborne particulate hazard that does through before the time limit is reached.
should consider specific exposure data not contain oil. Generally these filters When used in atmospheres containing non-
and workplace conditions before should be used and reused subject only to oil aerosol, 3M P-series filters should be
making their final selection.* considerations of hygiene, damage, and used and reused subject to conditions of
F. It is believed that an N-series filter is increased breathing resistance. hygiene, damage and increased breathing
sufficient since these materials will not N95 Particulate Filter -At least 95% resistance.
coat the filter fibers, but since this filter efficient when tested with ~0.3 µm P95 Particulate Filter -At least 95%
material may contain oil aerosols, an R- NaCl aerosol. 3M has replaceable filters filter efficient when tested with ~0.3 µm
or P-series filter is recommended until and filtering facepiece respirators in this DOP (Dioctyl Phthalate) aerosol. 3M
further research or a regulatory agency category. makes replaceable filters and filtering
takes a specific position. facepiece respirators in this category.
G. R- or P-series filters have been N100 Particulate Filter -At least
recommended pending more research 99.97% filter efficient when tested with P100 Particulate Filter -At least
as to how these materials affect the ~0.3 µm NaCl aerosol. 3M has a filtering 99.97% filter efficient when tested with
filter fibers. facepiece respirator in this category. ~0.3 µm DOP (Dioctyl Phthalate) aerosol.
H. Listing of 3M 3510, 3530, 3550, or 3M makes replaceable filters and filtering
3720 refers to a 3M™ Personal Air R-Series Filters: A filter intended for facepieces in this category.
Monitor which may be used to measure removal of any particle including oil-based
Oil: Any of numerous mineral, vegetable and synthetic
the amount of contaminant in the air. liquid aerosol. They may be used for any substances and animal and vegetable fats that are
Monitors may also be used to sample solid or liquid airborne particulate hazard. generally slippery, combustible, viscous, liquid or
If the atmosphere contains oil, the R-series liquefiable at room temperatures, soluble in various
for other materials with analysis organic solvents such as ether but not in water.
performed by a private laboratory. filter should be used only for a single shift
You should check with the laboratory (or for 8 hours of continuous or
to determine what other chemicals can

be measured with the monitors. An intermittent use).

estimate of the airborne concentration R95 Particulate Filter -At least 95%
is needed for making appropriate filter efficient when tested with ~0.3 µm
respirator selection and establishing DOP (Dioctyl Phthalate) aerosol. 3M
a cartridge change schedule. makes filtering facepiece respirators in
this category.
Contact the toll free 3M OH&ESD
Technical Service Line at 1-800-243-4630 P-Series Filters: A filter intended for
if you have questions about the use of this removal of any particle including oil-based
guide or the proper selection and use and liquid aerosols. They may be used for any
limitations of any 3M respirators. solid or liquid particulate airborne hazard.
NIOSH requires that respirator manufactur-
ers establish time-use limitations for all P-
Respirator Filter series filters. 3M recommends that P-series
Definitions filters should be used and reused for no
3M 42 CFR 84 Filters more than 40 hours of use or 30 days,
whichever occurs first, in atmospheres that
N-Series Filters: These filters are restrict- contain only oil aerosols, unless the filter
ed to use in those atmospheres free of oil needs to be changed for hygiene reasons, is

* See Perez, C. and S. C. Soderholm: Some Chemicals Requiring Special Consideration When Deciding Whether to Sample the Particle, Vapor, or Both Phases
of an Atmosphere. Appl. Occup. Hyg. 6(10): 859-864 (1991).

Definitions 10
 11

How to Use This Guide

If a respirator is being selected for a single if unknown or not sure. List the available, check the Respirator Identification
compound listed in this guide with an air contaminants on the form contained in this Key. If a PAPR is selected, use a HEPA
concentration not exceeding 10 times the value guide or on your own form. Go to Step 2. filter if an N, R, or P-series filter is listed. If
in the TLV column, then the respirator 2. Determine the air concentration of the the guide lists SA or SA(F) even though the
identified in the Respirator Recommended contaminant. Air sampling is hazard ratio is less than or equal to 10, an
column may be selected. If a particulate filter recommended. Consideration should be SA(F) must be used. A PAPR cannot be
respirator is recommended (any respirator code given to TWA, short term and peak used. For example: For an exposure to vinyl
with N95, N100, R95, P95 or P100 in it) and a (ceiling) exposures, while keeping in mind toluene with a hazard ratio of 90, an SA(F)
mineral, vegetable or synthetic oil or other oily seasonal and worker variability and the or (F)PAPR/OV must be selected. The
material is also present in the air, you must specific process being used. If air sampling (F)PAPR/OV is acceptable because the OV
select a respirator that provides the same data are not available and sampling is not cartridge is listed in the Respirator
efficiency but is acceptable for oil aerosols (see practical, historical information from Recommended column. The service life of
Oil definition). For example, if a respirator is similar processes or analogous operations the OV cartridge must be considered to
being selected for beryllium dust at a concen- may be helpful for calculating maximum determine if the (F)PAPR or SA(F) is the
tration 2 times the exposure limit, the guide exposures and evaluating potential health better selection given the high exposure
lists N95. This code indicates a half facepiece effects. Record the airborne concentrations. If the exposure was to 4-
respirator with an N95 particulate filter. If an concentration(s) on the form provided or vinylcyclohexene, an SA(F) must be
oil mist is present (air concentration greater your own form. Go to Step 3. selected. A PAPR could not be selected.
than 0.1 mg/m3, but less than the occupational 3. Is the airborne concentration unknown? Record the respirator you selected in the
exposure limit) either an R- or P-series filter a) If yes, go to Step 16. last column of the form for that chemical.
must be selected, even though respiratory b) If no, go to Step 4. Go to Step 10.
protection is not needed for the oil mist. 4. Is the oxygen concentration less than 8. Select either a supplied air respirator or a
Therefore, the minimum recommended 19.5% or does the potential exist for the full facepiece respirator with filters and/or
respirator would be R95 or P95. These codes oxygen concentration to fall below 19.5%? chemical cartridges listed in the guide
indicate a half facepiece respirator with an R95 a) If yes, go to Step 16. under the Respirator Recommended
or P95 particulate filter. These codes can be b) If no, go to Step 5. column. If the guide lists SA or SA(F), you

found in the Respirator Codes and 5. Is the chemical listed in the guide? must select the respirator recommended.
Descriptions section located in the fold-out a) If yes, go to Step 6. Do not use air purifying respirators. For
back cover of this guide. b) If no, go to Step 15. example: For an exposure to benzene with a
6. Record the IDLH value and the value from hazard ratio of 30 (15 ppm), an (F)OV
If respiratory protection is desired for an atmo- the TLV column on the form provided or could be selected. For the same exposure
sphere with more than one chemical or for an on one you created. Determine the hazard conditions to benzyl acetate, an SA must be
air concentration that exceeds either the IDLH ratio (see page 2) and record. Using this selected. Record the respirator you selected
value or 10 times the value in the TLV column, information, determine which condition in the last column of the form for that
you must follow the directions below for describes your situation: chemical. Go to Step 10.
proper respirator selection. If you need help, a) Does the airborne concentration 9. Select the respirator listed in the Respirator
call 3M Technical Service at 1-800-243-4630. exceed the IDLH value? If yes, go Recommended column. Record the
to Step 16. respirator you selected in the last column of
Oil: Any of numerous mineral, vegetable and b) Does the hazard ratio exceed (>) 1000? the form for that chemical. Go to Step 10.
synthetic substances and animal and vegetable If yes, go to Step 16. 10. Are any other air contaminants present at
fats that are generally slippery, combustible, c) Does the hazard ratio exceed (>) 50? the same time?
viscous, liquid or liquefiable at room tempera- If yes, go to Step 7. a) If yes, go to Step 2 and repeat the
tures, soluble in various organic solvents such d) Does the hazard ratio exceed (>) 10? procedure, recording the appropriate
as ether but not in water. If yes, go to Step 8. information for the next chemical. When
e) Is the hazard ratio less than or equal two or more contaminants that act upon
1. Identify the air contaminants present in the to (≤) 10? If yes, go to Step 9. the same organ system are present,
workplace. Include chemical name and 7. Select one of the following respirators: (1) consideration should be given to the
form. Classify particulate contaminants as a full facepiece, helmet or hood supplied combined effect rather than individual
oil or non-oil material. If the chemical is air respirator or (2) a powered air purifying effects. Consult the current edition of
listed in this guide, it is classified. For help, respirator (PAPR) with the same cartridge Exposure Indices published by the
see definition of oil. The material safety type as listed in the guide under the American Conference of Governmental
data sheet (MSDS) can be helpful with this Respirator Recommended column. To Industrial Hygienists for more
step. Consider particulate contaminants oil determine what type of PAPRs are information and the appropriate

How To Use This Guide 12

 13

formula. If combined effects are 14. Was more than one respirator type required and would like help, go to Step 17. If no
considered, calculate the hazard ratio for the specific exposure situation (i.e., is exposure limit is known, go to Step 16.
for the mixture. there more than one respirator code 16. These conditions (unknown, <19.5% O2,
b) If no, go to Step 11. included in the list made in the last column >IDLH) are generally considered as IDLH
11. Are any of the respirators listed in the last of the form?)? A respirator must be selected or the hazard ratio exceeds 1000. Select
column a particulate filter respirator (i.e., that satisfies all of the requirements listed either a positive pressure self-contained
does it have an N, R or P filter?)? in the last column. breathing apparatus (SCBA) or combination
a) If yes, go to Step 12. a) If yes, note all respirators recommend- respirator consisting of a positive pressure
b) If no, go to Step 14. ed. If your list contains more than one supplied air respirator with an auxiliary
12. Are only N-series particulate filter respirator and all are air-purifying SCBA. The rated duration of the auxiliary
respirator(s) listed? respirators, select from the Identification SCBA should be sufficient to allow
a) If yes, go to Step 13. Key the one with the highest assigned adequate time for escape. If 5 minutes is
b) If no, go to Step 14. protection factor (see page 2) and one sufficient escape time, the 3M™ Air-Mate™
13. Is airborne oil mist present that has not that removes all of the contaminants, if Combination Escape SCBA is acceptable
been considered as a result of one of the available. If SA or SA(F) is one of the (see Respirator Identification Key: Code
following conditions: (1) was not listed as respirators listed in the last column, this SCBA). Record the respirator selected in the
a contaminant or (2) is the oil mist respirator must be selected over all final row of the form. This is the minimum
concentration greater than 0.1 mg/m3 but others. If any of the respirator codes acceptable level of respiratory protection;
less than the value in the TLV column of contain the (F) designation, respirators the selection process is finished. If you need
the guide? A respirator is not required for with half facepieces cannot be used. If help, go to Step 17.
the oil. If a respirator is not being selected no air-purifying respirator will provide
for the oil, the presence of the oil must still the protection required, select SA or Note: If a chemical cartridge respirator is
be considered when choosing the SA(F) from the Respirator Identification selected, you must establish a change schedule
appropriate filter. a) If yes, a respirator Key. Go to Step 17. based on objective information and data. The
with either an R- or P-series filter must be information relied upon and the basis for the

selected. R-series filters must be changed b) If no, record the respirator listed in the cartridge change schedule and the basis for
after 8 hours use or after the respirator is last column as the final respirator reliance on the data must be described in the
loaded with or exposed to 200 mg of selected (bottom line). A respirator respiratory protection program.
aerosol. The manufacturer's service time meeting this description can be found
recommendation must be followed for by locating the code on the Respirator 17. Do you need help?
P-series filters. To choose a respirator that Identification Key. Go to Step 17. a) If yes, call 3M for assistance at
provides the same degree of protection 15. If the chemical is not listed in the guide, 1-800-243-4630. Follow the
as originally identified, but with an an occupational exposure limit either does recommendations given.
R-or P-series filter, consult the Respirator not exist or was not located. Since it is not b) If no, order the selected respirator(s)
Identification Key. Record the respirator known what an acceptable exposure level from the local 3M Sales Representative
with the R- or P-series filter that is is, a respirator cannot be recommended. If or Distributor.
being selected. Go to Step14. you have an exposure level for the material
b) If no, go to Step 14.

Respirator Selection Form

Chemical Name Air IDLH TLV/PEL Hazard Respirator

Concentration /WEEL Ratio Recommended

Respirator Selected:

14
 15
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Acetaldehyde 10,000 0.186 25* Ethanal, Acetic aldehyde (F)OV Short OV service life
(ceiling) (F)Form
Acetic acid 1000 0.016 10 2-Butoxethyl acetate, 2-Butoxyethanol (F)OV
acetate, Butylglycol acetate,
Ethylene glycol monobutyl ether
acetate, Glycol monobutyl ether acetate,
Glacial acetic acid, Methane
carboxylic acid, Ethanoic acid,
Vinegar acid
Acetic anhydride 1000 0.029 5 Ethanoic anhydride, Acetic acid (F)OV
anhydride, Acetyl oxide
Acetone 20,000 4.58 500* 2-Propanone, Dimethyl ketone, OV 3M 3530 Monitor
Ketone propane
Acetone cyanohydrin 3 2 a-Hydroxy isobutyronitrile, OV Poor warning.
-skin- 2-Propane cyanohydrin, 4.7 ppm TLV-C.
(AIHAWEEL) 2-Cyano-2-propanol,
2-Methyllactonitrile,
2-Hydroxy-2-methyl propanenitrile
Acetonitrile 4000 97.7 20 Cyanomethane; Ethane nitrile; OV Poor warning.
-skin- Ethyl nitrile; Methanecarbonitrile; 3M 3530 Monitor.
Methyl cyanide

Acetophenone 0.363 10 Methyl phenyl ketone, Acetyl OV See Comment E,

benzene, Benzoyl methide, page 8
Hypnone, 1-Phenylethanone
Acetylene dichloride (See 1,2-Dichloroethylene)
Acetylene tetrabromide 10 1 Tetrabromoethane OV Warning unknown
Acetylsalicylic acid 5 mg/m3 Aspirin N95
Acrolein 5 0.174 0.1 Acrylic aldehyde, Acrylaldehyde, (F)OV Poor warning
(ceiling) Propenal, Allylaldehyde
-skin-
Acrylamide 0.03 mg/m3* Propenamide, Acrylamide OV/N95 See Comment D,
-skin- monomer, Acrylic amide page 7
Acrylic acid 0.4 2* Acroleic acid, Propenoic acid (F)OV
-skin-
Acrylonitrile 500 16.6 2 Propenenitrile, AN, Vinyl cyanide OV Poor warning.
-skin- SA if cartridge not
disposed of after
shift, per 29 CFR
1910.1045.
3M 3510 Monitor.
Adipic acid 5 mg/m3 Hexanedioic acid; 1,6-Hexanedioic (F)N95
acid; 1,4-butanedicarboxylic acid
Adipinic Acid
* TLV is lower than PEL.

* TLV is lower than PEL.

Chemical Compound Guide 16
 17
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Adiponitrile 2 Addipic acid dinitrile; Hexanedinitrile; OV Warning unknown

-skin- 1,4-dicyanobutane; Tetramethylene
cyanide
Allyl alcohol 150 0.47 0.5* 2-Propenol, 2-Propen-1-ol, Vinyl (F)OV 3M 3510 Monitor
-skin- carbinol
Allyl chloride 300 0.489 1 3-Chloropropene, 1-Chloro-2- OV
propene
Allyl glycidyl ether 270 1 AGE; 1-Allyloxy-2,3-epoxy-propane (F)OV Warning unknown.
PEL-10 ppm ceiling.
Allyl isothiocyanate 0.035 1 Oil of mustard, AITC, OV 15 minute TWA.
(AIHAWEEL) Allyl thiocarbanimide, SA if used with
3-Isothiocyanate-1-propene, acids.
Allyl isosulfocyanate
Allyl propyl disulfide 0.5 Onion oil, Propyl allyl disulfide, (F)OV Warning unknown
2-Propenyl propyl disulfide
a-Alumina 10 mg/m3* Activated aluminum oxide N95
Aluminum (as Al)
–Metal and oxide dusts 10 mg/m3* N95
–Soluble salts and 2 mg/m3* N95
alkyls (NOC)
–Welding fume and 5 mg/m3* N95
pyro powders

p-Aminobenzoic acid 5 mg/m3 Aminobenzoic acid, (F)N95

(AIHAWEEL) 4-Aminobenzoic acid, PABA
2-Aminoethanol (See Ethanolamine)
2-Aminopyridine 5 0.5 a-Aminopyridine OV Warning unknown
Aminotri 10 mg/m3 ATMP; Aminotris AG/N95 If heated, AG
(methylenephosphonic AIHAWEEL (methylenephosphonic acid), cartridge may be
Acid) Briquest 302-500; Briquest 301-32S; needed
Dequest 2000; Dequest 2001;
Nitrilotrimethanephosphonic acid;
NTMP; NTPA, NTF
Ammonia 500 5.75 25* Anhydrous ammonia (F)AM Irritation also
provides warning
Ammonium chloride
-Solids 10 mg/m3 N95
-Liquids 10 mg/m3 AM/N95
Ammonium 0.01 mg/m3 OV/N95 See Comment D,
perfluorooctanoate -skin- page 7
n-Amyl acetate (See Pentyl acetate)
sec-Amyl acetate (See Pentyl acetate)
n-Amyl alcohol 0.1-0.3 100 Amyl alcohol, 1-Pentanol, F(OV)
(AIHAWEEL) n-Butyl alcohol, Pentyl alcohol,
Pentanol, n-Pentanol
tert-Amyl methyl acetate 20 TAME OV

* TLV is lower than PEL.

18
 19
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Aniline 100 0.676 2* Aminobenzene, Phenylamine, OV

-skin- Aniline oil
Anisidine (o-, p- isomers)
–ortho-Anisidine 10 0.1* o-Methoxyaniline (oil), OV/P95
–para-Anisidine -skin- p-Methoxyaniline (solid) OV/N95
Antimony and 80 mg/m3 0.5 mg/m3 N95
compounds (as Sb)
Arsenic, elemental and 100 mg/m3 0.01 mg/m3 N100
inorganic compounds (PEL)
(except arsine)
(as As)
Arsine 6 <1.0 0.05 ppm Hydrogen arsenide, Arsenic SA(F) Poor warning.
trihydride Unknown sorbent
effectiveness.
Asbestos 0.1 fiber/cc Chrysotile, Amosite, Crocidolite, N100 Dual cartridge as
(PEL) Tremolite, Anthophyllite, Actinolite per 29 CFR 1910.
1001, 1915.1001
and 1926.1101
Asphalt (petroleum; 0.5 mg/m3 Asphaltum, Bitumen, Hot mix OV/P95 R or P95 alone may
bitumen) fumes inhalable asphalt, Mineral pitch, Petroleum be suitable for some
(as benzene-soluble asphalt applications. See
aerosol) Comment F, page 9.
Barium soluble 1100 mg/m3 0.5 mg/m3 N95
compounds (as Ba)

Barium sulfate 10 mg/m3* N95

Benzaldehyde 0.042 2 Benzoic aldehyde, Oil of bitter F(OV)
(AIHAWEEL) almond, Benzenecarbonal
Benzene 3000 8.65 0.5* Benzol, Coal tar naphtha OV Poor warning. SA
if cartridges are not
replaced at the start
of each shift, per 29
CFR 1910.1028.
3M 3510 Monitor.
Benzophenone 0.5 mg/m3 Benzoyl benzene, Diphenyl ketone, OV/N95 See Comment D,
(AIHAWEEL) Diphenyl methanone, Phenyl ketone page 7
p-Benzoquinone (See Quinone)
Benzotrichloride 0.1 Toluene trichloride, Benzenyl (F)OV Warning unknown
(ceiling) trichloride, Benzoic trichloride,
-skin- Phenyl chloroform,
Trichloromethylbenzene
Benzoyl chloride 0.007 0.5 a-Chlorobenzaldehyde, (F)OV/AG
(ceiling) Benzene carbonyl chloride, (F)MG
Benzoic acid chloride
Benzoyl peroxide 7000 mg/m3 5 mg/m3 Dibenzoyl peroxide OV/N95 See Comment D,
page 7
Benzyl acetate 0.145 10 Acetic acid benzyl ester, OV/N95
Acetic acid phenylmethyl ester,
Phenylmethyl acetate

* TLV is lower than PEL. 20

 21
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Benzyl alcohol 5.55 10 a-Hydroxytoluene, Phenylmethanol, (F)OV

(AIHAWEEL) Phenylcarbinol
Benzyl chloride 10 0.034 1 a-Chlorotoluene (F)OV/AG See Comment E,
page 8. 3M 3510
Monitor.
Beryllium and 10 mg/m3 0.002 mg/m3 N95
compounds (as Be)
Biphenyl 47.6 0.0093 0.2 Diphenyl, Phenylbenzene OV/N95
Bis(2-dimethylamino- 0.05 ppm DMAEE; Ethylamine, 2,2'-Oxybis (FOV)
ethyl) ether -skin- (N.N-dimethyl)-; Niax [R] Catalyst
A-99
Bismuth telluride 10 mg/m3* Bismuth sesquitelluride N95
Bismuth telluride 5 mg/m3 N95
(Se-doped)
Borate compounds, inorganic
- Boric acid 2 mg/m3 Borofax; Boron trihydroxide; N95
Hydrogen orthoborate; Kill-off;
Kjel-sorb; Orthoboric acid;
Three elephant; Trihydroxyborane
- Sodium borate, anhydrous 2 mg/m3 Borates, tetrasodium salts, N95
anhydrous; Borax fused; Boric acid,
disodium salt; Disodium tetraborate;
Sodium tetraborate, anhydrous

- Sodium borate, decahydrate 2 mg/m3 Borates, tetrasodium salts, N95

decahydrate; Borax; Borascu; Borocin;
Disodium diborate decahydrate;
Disodium tetraborate decahydrate;
Sodium pyroborate decahydrate;
Sodium tetraborate, decahydrate
- Sodium borate, pentahydrate 2 mg/m3 Borates, tetrasodium salts, N95
pentahydrate; Boric acid pentahydrate;
Mule team borascu; Boron sodium oxide,
pentahydrate; Sodium tetraborate,
pentahydrate
Boron oxide 10 mg/m3* Anhydrous boric acid, Boric N95
anhydride, Boric oxide
Boron tribromide 1 Boron bromide (F)AG Warning unknown
(ceiling)
Boron trifluoride 100 1.5 1 (F)AG Poor warning
(ceiling)
Bromine 10 0.066 0.1 (F)OV/AG 0.2 ppm TLV-STEL.
Irritation also
provides warning.
Bromine pentafluoride 0.1 AG Warning unknown

* TLV is lower than PEL. 22

 23
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Bromochloromethane (See Chlorobromomethane)

Bromoform 0.447 0.5 Tribromomethane (F)OV 3M 3510 Monitor
-skin-
1-Bromopropane 10 n-Propylbromide, Propylbromide OV
1,3-Butadiene 20,000 0.455 1 Butadiene, Divinyl, Biethylene, OV Cartridges must be
(PEL) Erythrene replaced, per 29 CFR
1910.1051
Butane 204 100 n-Butane, Methylethyl methane SA Short OV service
life
n-Butanethiol (See Butyl mercaptan)
2-Butanone (See Methyl ethyl ketone)
2-Butoxyethanol 700 0.001 20* Butyl Cellosolve®, Ethylene glycol (F)OV See Comment E,
monobutylether page 8
n-Butyl acetate 10,000 0.007 150 Butyl acetate, Butyl ethanoate, (F)OV See Comment E,
Acetic acid butyl ester page 8. 3M 3510
Monitor.
sec-Butyl acetate 10,000 3-7 200 1-Methylpropylacetate (F)OV See Comment E,
page 8. 3M 3510
Monitor.
tert-Butyl acetate 10,000 4-47 200 Acetic acid tert-butyl ester (F)OV 3M 3510 Monitor

Butyl acrylate 0.003 2 2-Propenoic acid butyl ester, OV 3M 3510 Monitor

Butyl-2-propenoate
n-Butyl alcohol 8000 0.03 20* 1-Butanol, Butyl alcohol; Butyl (F)OV 25 ppm TLV-ceiling
hydroxide; Butyric alcohol; proposed. 3M 3510
1-Hydroxybutane; Methylolpropane; Monitor.
n-Propyl carbinol, n-Butanol
sec-Butyl alcohol 10,000 1 100 2-Butanol, Methyl ethyl carbinol (F)OV 3M 3510 Monitor
tert-Butyl alcohol 8000 21.5 100 2-Methyl-2-propanol, TBA, (F)OV 3M 3510 Monitor
Trimethyl-carbinol
Butylamine 2000 0.053 5 n-Butylamine, 1-Aminobutane AM Not specifically
(ceiling) approved, but
-skin- better service life
than OV
Butylated 2 mg/m3 BHT; DBPD; 2,6- F(OV)/N95
hydroxytoluene Di-tert-butyl-p-cresol
(as inhalable aerosol 2,6-bis(1,1-Dimethylethyl)-
and/or vapor) 4-methylphenol
4-tert-Butylcatechol 2 mg/m3 p-tert-Butylcatechol; 4-(1,1- (F)N95
-skin- Dimethylethyl)-1,2-benzenediol;
(AIHAWEEL) 4-tert-Butyl pyrocatechol;
4-tert-Butyl 1-1,2-dihydroxy benzene
tert-Butyl chromate 30 mg/m3 0.1 mg/m3 Chromic acid, di-tert-Butyl ester N95
(as CrO3) (ceiling)
-skin-

* TLV is lower than PEL. 24

 25
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Butylene oxide 0.06 2 1,2-Epoxybutane; 1-Butene oxide; OV

(AIHAWEEL) 1,2-Butene oxide; 1,2-Butylene
oxide; Epoxy-butane; BO
n-Butyl glycidyl ether 3500 3* BGE; 1,2-Epoxy-3-butoxy-propane OV Warning unknown
-skin- 3M 3510 Monitor
n-Butyl lactate 7.06 5 Lactic acid butylester OV Irritation also
provides warning
Butyl mercaptan 2500 0.001 0.5* n-Butanethiol, OV
1-Mercaptobutane
o-sec-Butylphenol 5 2-sec-Butylphenol OV/P95
-skin-
p-tert-Butyltoluene 1000 5.02 1* 1-Methyl-4-tert-butylbenzene OV Poor warning.
3M 3510 Monitor.
Butyraldehyde 0.009 25 Butal, Butaldehyde, Butalyde, (F)FORM Not specifically
(AIHAWEEL) Butanol, Butanaldehyde, Butyl approved, but better
aldehyde, Butyral butyric aldehyde service life than OV
Cadmium, elemental 50 mg/m3 dust 0.005 mg/m3 N100 0.002 mg/m3 TLV-
and compounds (as Cd) 9 mg/m3 fume (PEL) TWA for respirable
dust
Calcium arsenate 100 mg/m3 0.01 mg/m3 Tricalcium arsenate, Tricalcium N100
(as As) (PEL) o-arsenate, Cucumber dust

Calcium carbonate 10 mg/m3* Marble, Limestone N95

Calcium chromate 0.001 mg/m Calcium chrome yellow
3
N95
Calcium cyanamide 0.5 mg/m3 Lime nitrogen, Calcium carbimide N95
Calcium fluoride (as F) 2.5 mg/m3 Fluorite, Fluorspar N95
Calcium hydroxide 5 mg/m3* Calcium hydrate, Hydrated lime, N95
Caustic lime
Calcium oxide 2 mg/m3* Quicklime, Pebble lime N95
Calcium silicate 10 mg/m3* Calcium metasilicate, Portland N95
cement, Wallastonite
Calcium sulfate 10 mg/m3 Gypsum, Plaster of Paris N95
Camphor 33 0.051 2 2-Camphonone, Synthetic (F)OV/N95 3M 3510 Monitor
camphor, Gum camphor, Laurel
camphor
Caprolactam
(Inhalable aerosol and vapor) 0.064 5 mg/m3 Aminocaproic lactam, OV/N95
2-Oxohexamethyleneimine
Captan 5 mg/m3 N-(Trichloromethylthio)- N95
inhalable fraction 4-cyclohexene-1,2-dicarboximide
Carbon black 3.5 mg/m3 Channel black, Lamp black, N95
Furnace black, Thermal black,
Acetylene black
Carbon dioxide 50,000 74,000 5,000 Carbonic acid gas, Dry ice SA Poor warning.
Ineffective sorbents.

26
* TLV is lower than PEL.
 27
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Carbon disulfide 500 0.096 10* Carbon bisulfide OV

-skin-
Carbon monoxide 1500 100,000 25* Monoxide SA Poor warning.
Ineffective sorbents.
Carbon tetrabromide 0.1 Tetrabromomethane (F)OV Warning unknown
Carbon tetrachloride 300 40.7 5* Tetrachloromethane (F)OV Poor warning.
-skin- 3M 3510 Monitor.
Carbonyl chloride (See Phosgene)
Carbonyl fluoride 2 Fluoroformyl fluoride, Carbon (F)MG Warning unknown
oxyfluoride
Catechol 5 Pyrocatechol OV/N95
-skin-
Cellulose 10 mg/m3* Paper fiber N95
Cesium fluoride 2.5 mg/m3 N95
Cesium hydroxide 2 mg/m3 Cesium hydrate N95
Chloramphenicol 0.5 mg/m3 Chloromycetin; Levomycetin; N95
(AIHAWEEL) [R-(R*,R*)]-2,2-dichloro-N-[2-
hydroxy-1-(hydroxy methyl)-2-
(4-nitrophenyl)ethyl] acetamide
Chlorinated diphenyl oxide 0.5 mg/m3 Hexachlorodiphenyl oxide OV/P95 Warning unknown

Chlorine 30 0.05 0.5 (F)AG Irritation also

provides warning.
PEL-1 ppm ceiling.
Chlorine dioxide 10 9.24 0.1 Chlorine oxide, Chlorine peroxide AG
Chlorine trifluoride 20 0.1 Chlorine fluoride MG Warning unknown
(ceiling)
Chloroacetaldehyde 100 0.917 0.05* 2-Chloroethanal, (F)OV Poor warning
-skin- Chloroacetaldehyde (40% aqueous)
Chloroacetone 1 Monochloroacetone, 1-Chloro-2- (F)OV Warning unknown
(ceiling) propanone, Chloracetone
-skin-
a-Chloroacetophenone 16 0.026 0.05 Phenacyl chloride, Chloromethyl (F)OV/N95 Irritation also
phenyl ketone, Phenyl provides warning
chloromethyl ketone (tear gas)
Chloroacetyl chloride 0.05 Chloracetyl chloride (F)OV/AG Warning unknown
-skin-
Chlorobenzene 2400 0.741 10* Monochlorobenzene, Chlorobenzol, OV 3M 3510 Monitor
Phenyl chloride, MCB
o-Chlorobenzylidene 0.25 0.05 OCBM, CS OV/N95 5X OEL maximum.
malononitrile (ceiling) Low IDLH.
-skin-
Chlorobromomethane 5000 399 200 Bromochloromethane, Methylene OV Poor warning. Short
chlorobromide, CBM, Halon™ 1011 OV service life.

* TLV is lower than PEL. 28

 29
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

1-Chloro-1,1-difluoro- 1000 HCFC-142b, Dymel® 142b, SA Short OV service

ethane (AIHAWEEL) Genetron™ 142b, Chlorodifluoro- life
ethane, a-chloroethylidene fluoride
2-Chloro-1,3-butadine (See B-Chloroprene)
Chlorodifluoromethane 1,000 Freon® 22 SA Warning unknown.
Ineffective sorbents.
Chlorodiphenyl 10 mg/m3 1 mg/m3 Polychlorinated biphenyl, PCB (F)OV/P95 See Comment D,
(42% chlorine) -skin- page 7
Chlorodiphenyl 5 mg/m3 0.5 mg/m3 Polychlorinated biphenyl, PCB (F)OV/P95 See Comment D,
(54% chlorine) -skin- page 7
1-Chloro,2,3-epoxy- (See Epichlorohydrin)
propane
2-Chloroethanol (See Ethylene chlorohydrin)
Chloroethylene (See Vinyl chloride)
Chloroform 1000 11.7 10* Trichloromethane OV Poor warning.
3M 3510 Monitor.
bis-(2-Chloroisopropyl) 3 DCIPE, Dichloroisopropyl ether (F)OV Warning unknown
ether (AIHAWEEL)
bis-Chloromethyl ether 0.001 Dichloromethylether, BCME, (F)OV Warning unknown
Chloro (chloromethoxy) methane,
Chloromethyl ether
Chloropentafluoro- 1000 FC-115, SA Warning unknown.
ethane Monochloropentafluoroethane Short service life.

Chloropicrin 4 1.08 0.1 Nitrotrichloromethane, (F)OV Irritation also

Trichloronitromethane, provides warning
Nitrochloroform
B-Chloroprene 400 14.9 10* 2-Chloro-1,3-Butadiene; (F)OV Poor warning
-skin- Chlorobutadiene; beta-Chloroprene
1-Chloro-2-propanol 1 1-Chloro-2-hydroxypropane; OV
-skin- 1-Chloroisopropyl alcohol;
sec-Propylene chlorohydrin
2-Chloro-1-propanol 1 2-Chloropropanol; 2-Chloropropyl OV
-skin- alcohol; 1-Hydroxy-2-chloropropane;
Propylene chlorohydrin
2-Chloropropionic 50 Isopropyl chloride; 2-Propyl chloride, OV Short OV service life
AIHAWEEL isoprid, 2-CP
2-Chloropropionic acid 0.1 a-Chloropropionic acid OV/AG Warning unknown
-skin-
o-Chlorostyrene 50 1-Chloro-2-ethenylbenzene, OV Warning unknown.
2-Chlorostyrene 3M 3510 Monitor.
Chlorosulfonic acid 0.1 CSA, Chlorosulfuric acid (F)AG/N95 HCl, SO2 hydrolysis
(ceiling) products
2-Chloro-1,1,1,2-tetra- 1000 Chlorotetrafluoroethane, SA Short OV service
fluoroethane (AIHAWEEL) HCFC124, life
HFA124, Fluorocarbon 124
o-Chlorotoluene 0.219 50 2-Chloro-1-methylbenzene OV 3M 3510 Monitor
Chlorotrifluoroethylene 5 CFE, CTFE, Trifluorovinylchloride, SA Short OV service
(AIHAWEEL) Trifluorochloroethylene life

* TLV is lower than PEL. 30

 31
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Chromates of lead and (See Lead, Zinc chromate)

zinc (as Cr)
Chromium, metal and
inorganic compounds
(asCr)
–Metal and Cr III 0.5 mg/m3 N95
compounds
–Water-soluble Cr VI 30 mg/m3 0.05 mg/m3 N95
compounds, NOC
(includes Chromic acid)
–Insoluble Cr VI 0.01 mg/m3 N95
compounds, NOC
Chromyl chloride 0.025 Chromium oxychloride, AG Warning unknown
Chlorochromic anhydride
Coal dust
-Bituminous or lignite 0.9 mg/m3* N95 ≥5% quartz
(respirable) 0.1 mg/m3 TLV
-Anthracite 0.4 mg/m3* N95 ≥5% quartz
(respirable) 0.1 mg/m3 TLV

Coal tar pitch volatiles 700 mg/m3 0.2 mg/m3 R or P95 8247, 8577 or res-
(as Benzene solubles) pirators with 2076HF,
2078, 2096 or 2097
filters specifically
recommended. See
Comment F, page 9.
Cobalt, elemental and 20 mg/m3 0.02 mg/m3* N95
inorganic compounds
(as Co)
Cobalt carbonyl (as Co) 0.1 mg/m3 SA Ineffective sorbents
Cobalt hydrocarbonyl 0.1 mg/m3 SA Ineffective sorbents
(as Co)
Coke oven emissions 0.15 mg/m3 R or P95 8247, 8577 or res-
pirators with 2076HF,
2078, 2096 or 2097
filters specifically
recommended. See
Comment F, page 9.
Copper (as Cu)
–Dust and mist 1 mg/m3 N95
–Fume 0.1 mg/m3 N95
(PEL)

* TLV is lower than PEL. 32

 33
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Cotton dust (raw) 0.2 mg/m3* N95 5X PEL maximum

for disposables, per
OSHA cotton dust
standard. If oil
aerosol present, use
R or P95.
Cresol (all isomers) 250 0.00005- 5 Cresylic acid OV/P95
0.0079 -skin-
Cristobalite (See Silica, crystalline)
Crotonaldehyde 400 0.135 0.3 B-Methylacrolein, Propylene (F)OV
(ceiling) aldehyde, Crotontonic aldehyde
Cryolite (as F) 2.5 mg/m3 Greenland spar, Icetone N95
Cumene 8000 0.024 50 Isopropyl benzene, 2-Phenyl OV 3M 3510 Monitor
propane, Cumol
Cumene hydroperoxide 0.005 1 Isopropylbenzene hydroperoxide; (F)OV
-skin- CHP; a,a'-Dimethylbenzyl
(AIHAWEEL) hydroperoxide; Cumyl
hydroperoxide
Cyanamide 2 mg/m3 Cyanogenamide, Carbodiimide N95
Cyanides (as CN) 50 mg/m 3
5 mg/m3 SA Poor warning
(ceiling)
-skin-

Cyanogen 231 10 Dicyan, Oxalonitrile SA Poor warning.

Unknown sorbent
effectiveness.
Cyanogen chloride 0.976 0.3 CNCl SA(F) Poor warning. Short
(ceiling) service life.
Cyclohexane 10,000 83.8 100 Hexahydrobenzene, (F)OV Irritation also
Hexamethylene provides warning.
3M 3510 Monitor.
Cyclohexanol 3500 0.068 50 Hexalin, Hydralin, OV See Comment E,
-skin- Hydroxycyclohexane, Anol, page 8. 3M 3510
Hexahydrophenol, Cyclohexyl Monitor.
alcohol
Cyclohexanone 5000 0.019 20 Pimelic ketone, Cyclohexyl ketone OV 3M 3510 Monitor
-skin-
Cyclohexene 10,000 0.363 300 Benzene tetrahydride OV 3M 3510 Monitor
Cyclohexylamine 2.66 10 Hexahydroaniline, (F)OV
Aminocyclohexane
Cyclonite 0.5 mg/m3 RDX; sym-Trimethylene N95
-skin- trinitramine; Hexahydro-1,3,5-
trinitro-sym-triazine
Cyclopentadiene 2000 3.8 75 1,3-Cyclopentadiene OV
Cyclopentane 600 Pentamethylene SA Warning unknown.
Short OV service life.

* TLV is lower than PEL. 34

 35
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Decaborane 20 0.06 0.05 SA Poor warning.

-skin- Unknown sorbent
effectiveness.
Decabromodiphenyl 5 mg/m3 DBDPO, Decabromodiphenyl ether, N95
oxide (AIHAWEEL) bis-(pentabromophenyl) ether
1-Decene 7 100 Decylene, alpha-decene OV
(AIHAWEEL)
Diacetone alcohol 2100 0.891 50 Diacetone, 4-Hydroxy-4-methyl- (F)OV 3M 3510 Monitor
2-pentanone, 2-Methyl-2-pentanol
-4-one
Diallylamine 2-9 1 N-2-propenyl-2-propen-1-amine, OV Poor warning
-skin- Di-2-propenylamine
(AIHAWEEL)
1,2-Diaminoethane (See Ethylenediamine)
Diatomaceous earth (See Silica)
(uncalcined)
Diazomethane 2 0.2 Azimethylene, Diazirine SA Warning unknown.
Unknown sorbent
effectiveness.
Diborane 40 1.8-3.5 0.1 Boroethane SA Poor warning.
Unknown sorbent
effectiveness.

Dibromochloropropane 1 ppb 1-Chloro-2,3-dibromopropane; SA(F) Warning unknown.

(PEL) DBCP; 1,2-Dibromo- OSHA requires
3-chloropropane SA(F); no change
schedule allowed.
1,2-Dibromoethane (See Ethylene dibromide)
Dibutylamine 0.1 5 1-Butanamine, n-Butyl, F(OV) See Comment E,
(ceiling) Di-n-butylamine, DNBA page 8
-skin-
(AIHAWEEL)
2-N-Dibutylaminoethanol 0.5 Dibutylaminoethanol; N,N-dibutyl- (F)OV Warning unknown
-skin- N-(2-hydroxyethyl) amine
Dibutyl phenyl 0.3 DBPP R or P95 OV/P95 may be
phosphate -skin- preferable if heat
involved
Dibutyl phosphate 125 1 Dibutyl acid-o-phosphate, Di-n-butyl OV/P95
hydrogen phosphate, Dibutyl
phosphoric acid
Dibutyl phthalate 9300 mg/m3 5 mg/m3 DBP; Dibutyl; 1,2-Benzene- OV/P95 See Comment D,
dicarboxylate page 7
Dichloroacetic acid 0.5 Acetic acid, dichloro-; F(OV/AG)
- skin - 2,2-Dichloroacetic acid;
Dichloroehanoic acid; Urmer's liquid
Dichloroacetylene 0.1 Dichloroethyne SA(F) Warning unknown.
(ceiling) Short OV service
life.

36
* TLV is lower than PEL.
 37
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

o-Dichlorobenzene 1000 0.072 25 1,2-Dichlorobenzene; (F)OV See Comment E,

o-Dichloro-benzol page 8. PEL-50 ppm
ceiling. 3M 3510
Monitor.
p-Dichlorobenzene 1000 0.048 10* 1,4-Dichlorobenzene; Dichloricide; (F)OV/N95 3M 3510 Monitor
PDCB
1,4-Dichloro-2-butene 0.005 2-Butylenedichloride; (F)OV Warning unknown
-skin- DCB; 1,4-DCB;
Dichlorobutene
Dichlorodifluoromethane 50,000 1000 Refrigerant 12, Freon® 12 SA Warning unknown.
Short OV service life.
1,3-Dichloro-5,5- 0.01 0.2 mg/m3 Halane, Dactin OV/N95
dimethylhydantoin
1,1-Dichloroethane 4000 255 100 Ethylidene chloride OV Poor warning
1,2-Dichloroethane (See Ethylene dichloride)
1,1-Dichloroethylene (See Vinylidene chloride)
1,2-Dichloroethylene 4000 19.1 200 Acetylene dichloride, Dioform OV
Dichloroethyl ether 250 0.049 5 bis-(2-Chloroethyl) ether; (F)OV PEL-15 ppm ceiling
-skin- 2,2'-Dichlorodiethyl ether
Dichlorofluoro- 50,000 10* Refrigerant 21, Freon® 21, SA Warning unknown.
methane Dichloromonofluoromethane Short OV service life.

1,1-Dichloro-1-fluoro- 500 HCFC141b, SA Short OV service

ethane (AIHAWEEL) HFA141b, life
Fluorocarbon 141b
Dichloromethane (See Methylene chloride)
1,1-Dichloro-1- 150 2 OV Warning unknown.
nitroethane PEL-10 ppm ceiling.
2,4-Dichlorophenol 0.21 1 2,4-DCP; DCP; OV R or P95 may also
-skin- Phenol: 2,4-Dichloro be needed if material
AIHAWEEL is molten
1,2-Dichloropropane (See Propylene dichloride)
1,3-Dichloropropene 1 1,3-Dichloropropylene (F)OV Warning unknown
-skin-
2,2-Dichloropropionic 5 mg/m3 Dalapon™ (F)OV/N95 Warning unknown
acid
Dichlorotetra- 50,000 1000 Freon® 114, Refrigerant 114, SA Warning unknown.
fluoroethane Halon™ 242, FC-114 Short OV service life.
Dicyclopentadiene 0.03 5 OV/N95
Dicyclopentadienyl iron 10 mg/m3* bis-Cyclopentadienyl iron N95
Diesel Fuel 100 mg/m3 Astral oil, Gas oil, Coal oil, Fuel oil, OV/P95
(total hydrocarbons, -skin- Home heating oil, Marine diesel fuel
vapor and aerosol)
Diethanolamine 0.025 0.46 DEA, di-(2-Hydroxyethyl) amine OV See Comment E,
-skin- page 8

* TLV is lower than PEL. 38

 39
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Diethylamine 2000 0.186 5* (F)AM AM not specifically

-skin- (F)OV approved
Diethylaminoethanol 500 0.034 10 2-Diethylaminoethyl alcohol; OV
-skin- N,N-Diethylethanolamine
Diethylbenzenes, mixed 12 5 DEB; Dowtherm J; OV
1,2-Diethylbenzene;
1,3-Diethylbenzene;
1,4-Diethylbenzene
Diethylene glycol 10 mg/m3 DEG; Diglycol; 2,2’-Dihydroxy- R or P95 See Comments D
(AIHAWEEL) diethyl ether and G, pages 7 & 9
Diethylene glycol 0.708 25 2-(2-Ethoxyethoxy) ethanol, OV
monoethyl ether (AIHAWEEL) DiGGE, Diethylene glycol
ethyl ether, Glycol ether DE,
Carbitol, Dioxitol
Diethylene triamine 9.3 1 (F)OV Poor warning
-skin-
Diethyl ether (See Ethyl ether)
Di-2-ethylhexyl phthalate (See Di-sec-octyl phthalate)
Diethyl ketone 0.316 200 Metacetone, Propione, OV
3-Pentanone, Ethyl propionyl
Diethyl phthalate 5 mg/m3 Ethylphthalate, DEP R or P95

Difluorodibromo- 2500 100 Dibromodifluoromethane, OV Warning unknown

methane Freon® 12B2, DFBM
1,1-Difluoroethane 1000 HFC-152a, Freon® 152a, SA Ineffective sorbents
(AIHAWEEL) Dymel® 152a, Genetron™ 152a,
Ethylidene fluoride
Difluoromethane 1000 Refrigerant 32; R32; Hydrofluoro- SA Warning unknown.
(AIHAWEEL) carbon 32 Ineffective sorbents.
Diglycidyl ether 25 4.61 0.1 di-(Epoxypropyl) ether; bis-(2,3- (F)OV Poor warning
Epoxypropyl)-ether; 2-Epoxypropyl
ether; Diallyl ether dioxide; DGE
Dihydroxybenzene (See Hydroquinone)
Diisobutylene 75 Diisobutene OV
(AIHAWEEL)
Diisobutyl ketone 2000 0.339 25* 2,6-Dimethyl-4-heptanone; sym- (F)OV See Comment E,
Diisopropylacetone; Isovalerone; page 8. 3M 3510
Valerone Monitor.
Diisopropylamine 1000 0.398 5 (F)OV
-skin-
Dimethoxymethane (See Methylal)
Dimethyl acetamide 400 47.9 10 N,N-Dimethyl acetamide; DMAC OV Poor warning
-skin-
Dimethylamine 2000 0.081 5* Anhydrous dimethylamine AM AM not specifically
approved. Short OV
service life.
Dimethylaminobenzene (See Xylidine)
* TLV is lower than PEL. 40
 41
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments
Dimethylaniline 100 0.219 5 N,N-Dimethylaniline OV
-skin-
Dimethyldichlorosilane 2 Dichlorodimethylsilane OV/AG Warning unknown
(ceiling)
(AIHAWEEL)
Dimethylethoxysilane 0.5 Ethoxydimethyl silane SA(F) Unknown sorbent
effectiveness
Dimethylbenzene (See Xylene)
Dimethyl ether 0.3-9.0 1000 Methyl ether, Wood ether SA Very short OV
(AIHAWEEL) service life
Dimethyl formamide 3500 100 10 N,N-Dimethyl formamide; DMF OV Poor warning
-skin-
2,6-Dimethyl-4-heptanone (See Diisobutyl ketone)
1,1-Dimethylhydrazine 50 8.79 0.01 unsym-Dimethylhydrazine, SA(F) Poor warning.
-skin- UDMH Unknown sorbent
effectiveness.
Dimethylphthalate 9300 mg/m3 5 mg/m3 DMP OV/P95 See Comment D,
page 7
1,1-Dimethylpropyl acetate (See Pentyl acetate)
Dimethyl sulfide 0.0025 10 DMS, Thiobis (methane) OV/AG AG recommended
since H2S may also
be present

Dimethyl sulfoxide 250 DMSO, Methylsulfoxide OV

-skin-
Dimethylsulfate 10 0.1* Methyl sulfate (F)OV Poor warning
-skin-
Dimethyl terephthalate 5 mg/m3 OV/N95
(total dust)
(AIHAWEEL)
Dinitrobenzene 29 0.15* o-Dinitrobenzene, OV/N95
-skin- 1,2-Dinitrobenzene;
m-Dinitrobenzene;
1,3-Dinitrobenzene;
p-Dinitrobenzene,
1,4-Dinitrobenzene
3,5-Dinitro-o-toluamide 5 mg/m3 Dinitolmide N95
Dinitrotoluene 200 mg/m3 0.2 mg/m3 DNT OV/N95 See Comment D,
-skin- page 7
Dioxane 2000 7.78 20* Diethylene dioxide; Diethylene OV 3M 3510 Monitor
-skin- ether; p-Dioxane; 1,4-Dioxane
1,3-Dioxalane 20 1,3-Dioxacyclopentane; 1,3-Dioxolan; OV
Dioxolane;1,3-Dioxole, dihydroethylene
glycol formal; Formal glycol;
Glycolformal; Glycol methylene ether
Diphenyl (See Biphenyl)

* TLV is lower than PEL. 42

 43
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Diphenylamine 0.022 10 mg/m3 DPA, N-phenylaniline N95 OV/N95 may be

preferable when
odor is a problem
4,4-Diphenylmethane (See Methylenebisphenyl
diisocyanate isocyanate)
Dipropylene glycol 1000 100 Dipropylene glycol monomethyl OV Poor warning
methyl ether -skin- ether, Dowanol™ 50B
Dipropyl ketone 50 Butyrane, 4-Heptanone OV Warning unknown
Di-sec-octyl phthalate 5 mg/m3 DOP, bis-(2-Ethylhexyl)phthalate, R or P95
Di-2-ethylhexyl phthalate, DEHP
Divinyl benzene 10 DVB, Vinylstyrene (F)OV Warning unknown
Dodecyl mercaptan 0.1 1-Dodecanethiol, n-Dodecyl OV R or P filter may be
mercaptan, n-Lauryl mercaptan, needed with oily
1-Mercaptododecane aerosols
Dowtherm™ Q 1 1,1-Dipheylethane with OV/P95
(as inhalable aerosol and/or vapor (AIHAWEEL) ethylated benzenes
Emery 10 mg/m3* Corundum N95
Enflurane 75 2-Chloro-1,1,2-trifluoroethyl- SA Warning unknown.
difluoromethyl ether; Ethrane Short OV service
life. 3M 3510 Monitor.

Epichlorohydrin 250 0.934 0.5* 1-Chloro-2,3-epoxy-propane; (F)OV Poor warning.

-skin- 2-Chloropropylene oxide; 3M 3510 Monitor.
g-Chloropropylene oxide
1,2-Epoxypropane (See Propylene oxide)
2,3-Epoxy-1-propanol (See Glycidol)
Erythromycin 3 mg/m3 Dotycin, Erycin, Ericynum, N95
(AIHAWEEL) E-Mycin™, Pentadecanoic acid
Ethane 1000 Dimethyl ethane, Methylmethane SA Short OV service life
Ethanolamine 1000 2.59 3 Ethylolamine, Monoethanolamine, OV
B-Aminoethyl alcohol,
2-Aminoethanol,
2-Hydroxyethylamine
2-Ethoxyethanol 6000 1.22 5* Ethylene glycol monoethyl ether, OV 3M 3510 Monitor
-skin- Glycol monoethyl ether,
Cellosolve® solvent
2-Ethoxyethyl acetate 2500 0.182 5* Cellosolve® acetate, Ethylene OV 3M 3510 Monitor
-skin- glycol monoethyl ether acetate
Ethyl acetate 10,000 0.61 400 Acetic ester, Acetic ether, (F)OV 3M 3510 Monitor
Ethyl enthanoate
Ethyl acrylate 2000 0.0009 5* Acrylic acid, Ethyl ester (F)OV 3M 3510 Monitor
-skin-
Ethyl alcohol 15,000 0.136 1000 Ethanol OV Short OV service
life at 10X OEL

* TLV is lower than PEL. 44

 45
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Ethylamine 4000 0.324 5* Anhydrous ethylamine, (F)AM AM not specifically

-skin- Aminoethane, Monoethylamine approved. Short OV
service life.
Ethyl amyl ketone 3000 6 25 EAK, 5-Methyl-3-heptanone (F)OV
Ethyl benzene 2000 2.3 100 Phenylethane, Ethylbenzol OV See Comment E,
page 8. 3M 3510
Monitor.
Ethyl bromide 3500 3.09 5* Bromoethane SA Short OV service
-skin- life
Ethyl butyl ketone 3000 0.1-10 50 3-Heptanone OV See Comment E,
page 8
Ethyl chloride 20,000 4.07 100 Chloroethane, Monochloroethane, SA Very short OV
-skin- Hydrochloric ether service life
Ethyl cyanoacrylate 0.2 2-Cyanoacrylic acid, ethyl ester; OV Warning unknown
2-Cyano-2 propenoic acid, ethyl ester;
ECA; Ethyl alpha-cyanoacrylate;
Ethyl 2-cyanoacrylate; Ethyl 2-cyano-
2-propenoate
Ethyl tert-butyl ether 5 tert-Butyl ethyl ether; 1.1-Dimethyl- OV
ehtyl ether; ETBE; 2-Ethoxy-2-
methylpropane; Ethyl tert-butyl oxide;
Ethyl 1,1-dimethylethyl ether

Ethylene 200 Acetene, Bicarburetted hydrogen, SA(F)

Elayl, Ethene, Olefiant gas
Ethylene chlorohydrin 10 0.402 1* 2-Chloroethanol, 2-Chloroethyl OV 3M 3510 Monitor
(ceiling) alcohol
-skin-
Ethylenediamine 2000 4.27 10 1,2-Diaminoethane; (F)OV
1,2-Ethanediamine
Ethylene dibromide 400 9.84 20 1,2-Dibromoethane (F)OV
(PEL)
-skin-
Ethylene dichloride 1000 11.2 10* Ethylene chloride; OV Poor warning.
1,2-Dichloroethane 3M 3510 Monitor.
Ethylene glycol, aerosol 60.3 mg/m3 100 mg/m3 Ethylene alcohol; Glycol; OV/P95 See Comments D
(ceiling) 1,2-Ethanediol and G, pages 7 & 9
Ethylene glycol dinitrate 82 0.05* Glycol dinitrate, Nitroglycol OV Warning unknown.
-skin- PEL-0.2 ppm ceiling.
Ethylene glycol methyl (See 2-Methoxyethyl acetate)
ether acetate
Ethyleneimine 100 1.5 0.5 Ethyleimine, Dimethylenimine, SA(F) Poor warning. OSHA
-skin- Dihydroazirine, Azirane, Aziridine, requires SA(F); see
Aminoethylene 29 CFR 1910.1003.

* TLV is lower than PEL. 46

 47
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Ethylene oxide 800 851 1 Dimethylene oxide; 1,2-Epoxy SA(F) Poor warning. OSHA
ethane; Oxirane requires SA(F); no
change schedule
allowed. 3M 3550
Monitor.
Ethyl ether 19,000 2.29 400 Diethyl ether, Ethyl oxide, Ether OV Short service life.
3M 3530 Monitor.
Ethyl formate 8000 18.6 100 Ethyl methanoate, Formic acid (F)OV Short service life
ethyl ester
2-Ethylhexanoic acid 5 mg/m3 Butylethylacetic acid; 2-Butylbutanoic OV/N95
(as inhalable aerosol and vapor) acid; 2-Ethylcaproic acid;
2-Ethylhexoic acid; Ethylhexoic acid
Ethylidene chloride (See 1,1-Dichloroethane)
Ethylidene norbornene 0.074 5 ENB (F)OV
(ceiling)
Ethyl mercaptan 2500 0.001 0.5* Ethanethiol, Ethyl sulfhydrate OV
N-Ethylmorpholine 2000 0.275 5* 4-Ethylmorpholine (F)OV
-skin-
Ethyl silicate 1000 3.6 10* Tetraethyl silicate, Ethyl OV
orthosilicate, Tetraethoxysilane

Ferric/Ferrous salts, (See Iron salts)

soluble
Ferrovanadium, dust 1 mg/m3 N95
Fibrous glass, dust (See Synthetic vitreous fibers -
Continuous filament glass fibers)
Flour dust 0.5 mg/m3 N95
(as inhalable particles)
Fluorides (as F) 500 mg/m3 2.5 mg/m3 Synonyms vary depending upon N95
specific compound
Fluorine 25 0.126 0.1 SA(F) Poor warning.
(PEL) Unknown reaction
products with sorbent.
Fluorotrichloromethane (See Trichlorofluoromethane)
Formaldehyde 30 0.871 0.3* Methylene oxide, Formalin (F)FORM Irritation also
(ceiling) provides warning.
3M 3720 Monitor.
Formamide 80 10* Methanamide OV Poor warning
-skin-
Formic acid 30 28.2 5 Hydrogencarboxylic acid, (F)OV Poor warning.
Methanoic acid 6X OEL maximum.
Low IDLH.
Furfural 250 0.058 2* 2-Furaldehyde, Furfuraldehyde, (F)OV 3M 3510 Monitor
-skin- Fural, 2-Furancarboxaldehyde

* TLV is lower than PEL. 48

 49
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Furfuryl alcohol 250 7.83 10* 2-Hydroxymethylfuran, 2-Furyl- (F)OV See Comment E,
-skin- methanol page 8
Gallium arsenide 0.3 µg/m3 Gallium monoarsenide N100
Gasoline 0.3 300 Petrol (F)OV
Germanium tetrahydride 0.2 Germane, Germanium hydride SA(F) Warning unknown.
Unknown sorbent
effectiveness.
Glass, fibrous or dust (See Synthetic vitreous fibers)
Glutaraldehyde 0.038 0.05 1,5-Pentanedial (F)OV See Comment E,
(ceiling) page 8
Glycerin, mist 10 mg/m3* Glycerol R or P95
Glycidol 500 2* 2-Hydroxymethyloxiran; OV Warning unknown
Hydroxymethyl ethylene oxide;
Epoxypropyl alcohol; 3-Hydroxy-
propylene oxide; 2,3-Epoxy-1-propanol
Glycidyl methacrylate 0.5 GMA OV
(AIHAWEEL)
-skin-
Glycol monoethyl ether (See 2-Ethoxyethanol)

Glyoxal 0.1 mg/m3 Ethanedial, Biformyl, Diformyl, (F)OV/N95 Short OV service for
(as inhalable aerosol Oxaldehyde, 1,2-Ethanedione vapor at 10X OEL
and/or vapor)
Grain dust (oat, wheat, 4 mg/m3* N95
barley) (respirable)
Graphite (natural) 2.5 mg/m3* Plumbago, Potelot, Corbo minerals, N95
(respirable) Black lead, Silver lead
Graphite (synthetic) 2 mg/m3* N95
(respirable)
Gypsum (See Calcium sulfate)
Hafnium and 0.5 mg/m 3
N95
compounds (as Hf)
Halothane 33 50 2-Bromo-2-chloro-1,1,1- OV 3M 3510 Monitor
trifluoroethane
Heptane 5000 9.77 400* Normal heptane, n-Heptane OV 3M 3510 Monitor
2-Heptanone (See Methyl n-amyl ketone)
3-Heptanone (See Ethyl butyl ketone)
Hexachlorobenzene 0.463 mg/m3 0.002 mg/m3 Perchlorobenzene N95
-skin-
Hexachlorobuta- 0.02 Hexachloro-1,3-butadiene; (F)OV Warning unknown
diene -skin- perchlorobutadiene
Hexachlorocyclopenta- 0.03 0.01 (F)OV Poor warning
diene
* TLV is lower than PEL. 50
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3. 51
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Hexachloroethane 300 0.15 1 Perchloroethane OV/N95

-skin-
Hexachloronaphthalene 2 mg/m3 0.2 mg/m3 Halowax™ 1014 OV/N95 See Comment D,
-skin- page 7
1,4-Hexadiene 10 OV Warning unknown
(AIHAWEEL)
Hexafluoroacetone 0.1 1,1,1,3,3,3-Hexafluoro-2-propanone SA Warning unknown.
-skin- Short OV service life.
1,1,1,3,3,3-Hexafluoro- 1000 HFC-236 fa; FC-236 fa; hydro- SA Ineffective sorbents
propane (AIHAWEEL) fluorocarbon 236 fa; FE-13
Hexahydrophthalic 0.005mg/m3 1,2-Cyclohexanedicarboxylic OV/N95
anhydride (ceiling) acid anhydride; Cyclohexane-1,
all isomers 2-dicarboxylic anhydride, cis and
(as inhalable vapor trans mixture; 1,2-Cyclohexanedi-
and aerosol) carboxylic anhydride; Hexahydroph-
thalic acid anhydride; Hexahydro-1,
3-isobenzofurandione; HHPA;
HHPAA; 1,3-Isobenzofurandione,
hexahdro
Hexamethylene 0.01 0.005 HDI OV/N95 Poor warning
diisocyanate

Hexane (n-Hexane) 5000 21.9 50* Hexyl hydride, Normal hexane OV 3M 3510 Monitor
-skin-
Hexane (other isomers) 65-248 500 OV 3M 3510 Monitor
1,6-Hexanediamine 1 Hexamethylenediamine; OV/N95
AIHAWEEL 1,6-diaminohexane;
HMDA; HMD
Hexanediol diacrylate 1 mg/m3 HDODA; Propenoic acid, OV/P95 See Comment D,
(AIHAWEEL) 1,6-hexanediol ester page 7
2-Hexanone (See Methyl n-butyl ketone)
1-Hexene 50 Butyl ethylene; Hexene; Hex-1-ene; OV Warning unknown
Hexene-n-1; Hexylene
Hexone (See Methyl isobutyl ketone)
sec-Hexyl acetate 4000 0.219 50 1,3-Dimethylbutyl acetate; (F)OV See Comment E,
Methylamyl acetate; Methylisoamyl page 8
acetate; Methylisobutyl carbinol
Hexylene glycol 49.9 25 4-Methyl-2,4-pentanediol (F)OV Irritation also
(ceiling) provides warning
HFE-7100 750 Mixture of 1-Methoxy-1,1,2,2,3,3,4, OV Warning unknown
(AIHAWEEL) 4,4-nonafluorobutane (40%) and
1-Methoxy-2-Trifluoromethyl-1,1,2,
3,3,3-hexafluoropropane (60%);
Mixture of 1-Methoxyperfluorobu-
tane (40%) and 1-Methyoxyper-
fluoroisobutane (60%)

* TLV is lower than PEL.

52
 53
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Hydrazine 80 3.6 0.01* Anhydrous hydrazine SA(F) Poor warning

-skin-
Hydrogenated terphenyls 0.5 R or P95
Hydrogen bromide 2 2 Hydrobromic acid, HBr AG Not specifically
(ceiling) approved for HBr
Hydrogen chloride 100 0.77 2 Hydrochloric acid, HCl, AG Irritation also
(ceiling) Muriatic acid provides warning
Hydrogen cyanide 50 0.603 4.7* Hydrocyanic acid, Prussic acid SA(F) 10X OEL maximum.
(ceiling) Low IDLH.
-skin-
Hydrogen fluoride 30 0.042 0.5 Anhydrofluoric acid, HF, Etching (F)HF
-skin- acid, Fluorohydric acid, Fluoric acid
Hydrogen peroxide 75 1 Peroxide, Hydrogen dioxide SA(F) Warning unknown.
Unknown sorbent
effectiveness.
Hydrogen selenide 2 0.3 0.05 Selenium hydride (F)MG Poor warning
(as Se)
Hydrogen sulfide 300 0.0005 10* Sulfuretted hydrogen, H2S, SA Poor warning
Hydrosulfuric acid, Hepatic gas AG-escape (olfactory fatigue)
only

Hydroquinone 2 mg/m3 Quinol; Dihydroxybenzene; (F)OV/N95 See Comment D,

1,4-Benzenediol page 7
Hydrotreated kerosene 0.1 200 mg/m3 OV/P95 When aerosols
-skin- present, add a
particulate prefilter.
4-Hydroxy-4-methyl-2- (See Diacetone alcohol)
pentanone
2-Hydroxypropyl 0.5 HPA OV Warning unknown
acrylate -skin-
Indene 0.009 10 Indonaphthene OV
Indium and 0.1 mg/m3 N95
compounds (as In)
Iodine 10 0.1 (F)MG Warning unknown
(ceiling)
Iodoform 0.000019-1.1 0.6 Triiodomethane (F)OV Questionable
warning
Iron oxide, dust 5 mg/m3* Ferric oxide fume N95
and fume (as Fe)
Iron pentacarbonyl 0.1 Iron carbonyl SA Warning unknown.
(as Fe) Unknown sorbent
effectiveness.
Iron salts, soluble 1 mg/m3 Ferrous sulfate and chloride; N95
(as Fe) Ferric chloride, nitrate and sulfate

* TLV is lower than PEL.

54
 55
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Isoamyl acetate 0.004 (See Pentyl acetate)

Isoamyl alcohol 10,000 0.045 100 3-Methyl-1-butanol, Isobutyl (F)OV See Comment E,
carbinol, Isopentyl alcohol, Fusel oil page 8
Isobutyl acetate 7500 0.479 150 2-Methylpropyl acetate (F)OV
Isobutyl alcohol 8000 0.832 50* Isobutanol, IBA, 2-Methyl-1- (F)OV 3M 3510 Monitor
propanol, Isopropylcarbinol
Isobutane 1000 Methylpropane; 2-methylpropane SA Short OV service life.
Isobutyl nitrate 1 IBN; Nitrous acid, isobutyl F(OV)N95 See Comment E
(Inhalable aerosol and vapor) (ceiling) ester; Nitrous acid, 2-methylpropyl
ester
Isobutyraldehyde 25 Isobutanal, 2-Methylpropanal, OV Short OV service life.
Isobutyric aldehyde, Isobutyl aldehyde,
2-Methylpropionaldehyde, 2-Methyl-1-
propanal, Valine aldehyde
Isocyanuric acid 10 mg/m3 Cyanuric acid, N95 AM/N95 may be
(total) s-Triazinetriol, preferable, if wet
(AIHAWEEL) s-Triazine-2,4,6(1H,3H,5H)-trione
5 mg/m 3

(respirable)
(AIHAWEEL)
Isooctyl alcohol 50 Isooctanol OV Warning unknown
-skin-

Isophorone 800 0.631 5* 3,5,5-Trimethyl-2-cyclohexene-1-one OV See Comment E,

(ceiling) page 8. 3M 3510
Monitor.
Isophorone diisocyanate 0.005 IPDI OV/N95 Warning unknown
Isophthalic acid 5 mg/m3 1,3-Dicarboxylic acid; N95
(respirable) m-Phthalic acid;
(AIHAWEEL) IA; IPA
Isoprene 2 2-Methyl-1,3-butadiene OV Warning unknown
(AIHAWEEL)
Isopropoxyethanol 0.738 25 IPE, Isopropyl glycol, Ethylene OV
-skin- glycol monoisopropyl ether,
Isopropyl Cellosolve®
Isopropyl acetate 16,000 0.05-4.1 100 Isopropyl ester of acetic acid, (F)OV 3M 3510 Monitor
sec-Propyl acetate
Isopropyl alcohol 12,000 22 200 Isopropanol, IPA, 2-Propanol, (F)OV Irritation also
sec-Propyl alcohol provides warning.
3M 3530 Monitor.
Isopropylamine 4000 0.6 5 Monoisopropylamine, (F)AM AM not specifically
2-Aminopropane (F)OV approved
N-Isopropylaniline 2 o-Isopropylaniline, o-Amino- OV Warning unknown
-skin- isopropylbenzene
Isopropyl ether 10,000 0.055 250* Diisopropyl ether OV

* TLV is lower than PEL.

56
 57
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Isopropyl glycidyl ether 1000 297 50 Isopropoxymethyl-oxiran; 1,2- (F)OV Poor warning
Epoxy-3-isopropoxy-propane;
Isopropyl epoxypropyl ether; IGE
Kaolin 2 mg/m3* China clay, Aluminum silicate N95
(respirable)
Ketene 0.5 Carbomethene, Ethenone SA(F) Warning unknown.
Ineffective sorbents.
Kerosene 200 Deobase, Kerosine, Diesel No. 1 OV/P95 When aerosols
(Total hydrocarbon vapor) -skin- present, add a
particulate prefilter.
Lacquer thinner (See specific ingredients)
Lead, elemental and 700 mg/m3 0.05 mg/m3 N100
inorganic compounds
(as Pb)
Lead arsenate 0.01 mg/m3 N100
(as As) (PEL)
Lead chromate 0.012 mg/m3*Chrome orange, Red N100
(as Cr) lead chromate
Limestone (See Calcium carbonate)

d-Limonene 0.437 30 1-methyl-4(1-methylethenyl) OV

(AIHAWEEL) cyclohexene; 4-isopropyl-1-
methylcyclohexene; p-mentha-
1,8-diene; Cinene; Cajeputene
Lithium fluoride (as F) 2.5 mg/m3 N95
Lithium hydride 55 mg/m 3
0.025 mg/m 3
N95
Lithium hydroxide 1 mg/m3 Lithium hydroxide N95
(ceiling) monohydrate
(AIHAWEEL)
Lithium oxide 1 mg/m3 Dilithium oxide, Lithium N95
(ceiling) monoxide
(AIHAWEEL)
LPG 19,000 1000 Liquefied petroleum gas, SA Warning unknown.
Bottled gas Mixture with com-
pounds with short
OV service life.
Magnesite 10 mg/m3* Magnesium carbonate N95
Magnesium oxide fume 10 mg/m3* Magnesia fume N95
Maleic anhydride 0.318 0.1 (F)OV/N95 Poor warning
Manganese, elemental 0.2 mg/m3* N95
and inorganic
compounds (as Mn)

* TLV is lower than PEL.

58
 59
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Manganese cyclopenta- 0.1 mg/m3 MCT SA Properties of vapor

dienyl tricarbonyl -skin- unknown
Marble (See Calcium carbonate)
Melamine 10 mg/m3 1,3,5-Triazine-2,4,6-triamine; N95
(inhalable) 2,4,6-Triamino-1,3,5-Triazine,
(AIHAWEEL) Cyanuramide
5 mg/m 3
N95
(respirable)
(AIHAWEEL)
2-Mercaptobenzo- 12 mg/m3 5 mg/m3 Mercaptobenzothiazole; N95
thiazole -skin- 2(3H)-Benzothiazolyl mercaptan;
(AIHAWEEL) Benzothiazole-2-thione
Mercaptoethanol 0.12- 0.2 2-Mercaptoethanol, 2ME, OV Poor warning
0.64 -skin- 1-Hydroxy-2-mercaptoethane,
(AIHAWEEL) 2-Hydroxy-1-ethanethiol,
2-Hydroxyethylmercaptan,
2-Thioethanol, Thioethyleneglycol,
Thioglycol
Mercury (as Hg)
–Vapor 28 mg/m3 0.025 mg/m3* Quicksilver, Hg Hg
-skin-
–Alkyl compounds 10 mg/m3 0.01 mg/m3 SA
-skin-

–Aryl compounds 28 mg/m3 0.1 mg/m3 N95 Dust with

(PEL) essentially no
(ceiling) vapor pressure only
-skin-
–Inorganic 28 mg/m3 0.025 mg/m3* N95 Dust with essentially
compounds no vapor pressure
only. Hg/N95 for
volatile liquids.
Mesityl oxide 5000 0.056 15* Isobutenyl methyl ketone, Methyl (F)OV 3M 3510 Monitor
isobutenyl ketone, Isopropylidene
acetone
Methacrylic acid 20 a-Methacrylic acid (F)OV Warning unknown
-skin-
Methane 1000 Biogas; Fire damp; Marsh gas; SA Short OV service life.
Methylhydride; Natural gas;
R 50 (refrigerant)
Methanethiol (See Methyl mercaptan)
2-Methoxyethanol 2000 0.11 5* Ethylene glycol monomethyl ether, OV 3M 3510 Monitor
-skin- Methyl Cellosolve®
2-Methoxyethyl acetate 4000 1.07 5* Ethylene glycol methyl ether OV 3M 3510 Monitor
-skin- acetate, Ethylene glycol
monomethyl ether acetate, Methyl
Cellosolve® acetate
4-Methoxyphenol 5 mg/m3 p-Methoxyphenol, Hydroquinone N95
monomethyl ether
* TLV is lower than PEL. 60
 61
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

3-Methoxypropyl amine 2.7 5 1-Propanimine, 3-Methoxy (F)OV Irritation also

(AIHAWEEL) (F)AM provides warning.
AM not specifically
approved.
Methyl acetate 10,000 6.17 200 Acetic acid, methyl ester; Methyl OV
acetic ester; Methyl ethanoate
Methyl acetylene 15,000 1000 Propyne, Allylene SA Warning unknown.
Very short OV
service life.
Methyl acetylene 15,000 100 1000 MAPP gas, Methyl acetylene-allene SA Very short OV
propadiene mixture mixture, Propyne-allene mixture service life
Methyl acrylate 1000 0.263 2 Methyl propenoate (F)OV 3M 3510 Monitor
-skin-
Methylacrylonitrile 6.8 1 2-Methyl-2-propenenitrile, Isoprene SA Poor warning
-skin- cyanide
Methylal 15,000 1000 Dimethyoxymethane, Methyl SA Warning unknown
formal, Formal, Dimethylacetal
formaldehyde
Methyl alcohol 25,000 141 200 Methanol, Wood alcohol, Carbinol SA Very short OV
-skin- service life
Methylamine 100 0.019 5* Monomethylamine (F)AM

Methyl amyl alcohol 2000 1.1 25 Methyl isobutyl carbinol OV

-skin-
Methyl n-amyl ketone 4000 0.141 50* n-Amyl methyl ketone, 2-Heptanone OV See Comment E,
page 8
Methylaniline 100 1.74 0.5* Monomethyl aniline, MA, OV Poor warning
-skin- N-Methyl aniline
Methyl bromide 2000 1* Bromomethane SA(F) Short OV service life.
-skin- Use of 60928 Cartridge/
Filter recommended
by 3M; not specifically
approved for methyl
bromide.
2-Methylbutyl acetate (See Pentyl acetate)
Methyl n-butyl ketone 5000 0.166 5* 2-Hexanone, MBK OV 3M 3510 Monitor
-skin-
Methyl Cellosolve® (See 2-Methoxyethanol)
Methyl Cellosolve® acetate (See 2-Methoxyethyl acetate)
Methyl chloride 10,000 10.2 50* Chloromethane SA Very short OV
-skin- service life
Methyl chloroform 1000 22.4 350 1,1,1-Trichloroethane OV 3M 3510 Monitor
Methyl 2-cyanoacrylate 2.16 0.2 Mecrylate (F)OV Poor warning
Methylcyclohexane 10,000 500-630 400* Cyclohexylmethane, OV Poor warning
Hexahydrotoluene

* TLV is lower than PEL. 62

 63
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Methylcyclohexanol 10,000 490 50* Hexahydrocresols OV Poor warning

o-Methylcyclohexanone 2500 50* 2-Methylcyclohexanone (F)OV Irritation also
-skin- provides warning
2-Methylcyclopentadienyl 0.2 mg/m3 OV/N95 SA preferable if
manganese tricarbonyl -skin- heat involved
(as Mn)
Methylenebisphenyl 9.7 0.384 0.005* MDI; 4,4'-Diphenylmethane OV/N95 Poor warning
isocyanate diisocyanate; Methylene-bis-
(4-phenyl isocyanate)
Methylene chloride 5000 0.912 25 Dichloromethane, Methylene SA(F) OSHA requires
(PEL) dichloride SA(F); no change
schedule allowed.
Short OV service life.
3M 3530 Monitor.
4,4'-Methylene-bis- 0.01 MOCA; DACPM; 4,4'-Methylene OV Warning unknown
(2-chloroaniline) -skin- -bis-(2-chlorobenzamine)
Methylene-bis-(4- 0.005 OV/N95 Warning unknown
cyclohexylisocyanate)
4,4'-Methylene dianiline 0.01 4,4'-Diaminodiphenylmethane; N100 Warning unknown.
(PEL) MDA Use OV/N100 if heat
-skin- is involved. See
29 CFR 1910.1050.

Methyl ethyl ketone 3000 0.27 200 MEK, 2-Butanone (F)OV 3M 3510 Monitor
Methyl ethyl ketone 0.2 MEKP (F)OV Warning unknown
peroxide (ceiling)
Methyl ethyl ketoxime 10 2-Butanone oxime, MEKO OV Warning unknown
(AIHAWEEL)
Methyl formate 5000 93.3 100 Methyl methanoate, Formic acid, SA Short OV service
Methyl ester life
5-Methyl-3-heptanone (See Ethyl amyl ketone)
Methyl hydrazine 50 1.71 0.01 Monomethyl hydrazine SA(F) Poor warning.
-skin- Unknown sorbent
effectiveness.
Methyl iodide 800 2 Iodomethane SA(F) Warning unknown.
-skin- Short OV service
life.
Methyl isoamyl ketone 0.042 50* 5-Methyl-2-hexanone, 2-Methyl- (F)OV
5-hexanone, MIAK
Methyl isobutyl carbinol (See Methyl amyl alcohol)
Methyl isobutyl ketone 3000 0.121 50* MIBK, Hexone (F)OV 3M 3510 Monitor
Methyl isocyanate 20 2.1 0.02 Isocyanic acid, methyl ester SA Poor warning.
-skin- Unknown sorbent
effectiveness.
Methyl isopropyl ketone 4.47 200 MIPK, 3-Methyl-2-butanone (F)OV

* TLV is lower than PEL.

64
 65
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Methyl mercaptan 0.001 0.5* Mercaptomethane; Methanediol; OV Very short OV

Methyl sulfhydrate; service life
Thiomethyl alcohol
Methyl methacrylate 4000 0.085 50 Methacrylic acid, methyl ester OV 3M 3510 Monitor
Methyl propyl ketone 5000 1.55 200 MPK, 2-Pentanone, Ethyl acetone (F)OV 3M 3510 Monitor
n-Methyl-2-pyrrolidone 10 NMP; 1-Methyl-2-pyrrolidone; OV Warning unknown
-skin- m-Pyrol; n-Methyl pyrrolidone
(AIHAWEEL)
Methyl silicate 1 Tetramethoxy silane (F)OV Warning unknown
a-Methyl styrene 5000 0.003 50 1-Methyl-1-phenyl-ethylene, AMS OV See Comment E,
page 8. PEL-100
ppm ceiling.
Methyl tert-butyl ether 0.053 50 2-Methoxy-2-methyl-propane; OV 3M 3510 Monitor
tert-Butyl methyl ether;
MTBE; 2,2-MMOP
Methyltrichlorosilane 1 Trichloromethylsilane (F)AG/N95 Irritation provides
(ceiling) warning
(AIHAWEEL)

Methyl vinyl ketone 0.2 0.2 Acetyl ethylene; 3-Buten-2-one; OV

(ceiling) 3-Butene-2-one; Butenone;
-skin- d(3)-2-Butenone; Methylene
acetone; Methyl vinyl acetone;
g-Oxo-a-Butylene
Mica 3 mg/m3* N95
(less than 1% quartz) (respirable)
Mineral spirits (See Stoddard solvent)
Mineral (rock), wool fiber (See Synthetic vitreous fibers–Glass, Rock or Slag wool fibers)
Molybdenum (as Mo)
–Soluble compounds
(as respirable particulate) 0.5 mg/m3 N95
–Insoluble compounds
(as inhalable particulate) 10 mg/m3 N95
(as respirable particulate) 3 mg/m3 N95
Monochloroacetic acid 0.045 0.5 MCA, MCAA, Chloroethanoic acid (F)OV/N95
-skin-
(AIHAWEEL)
Monochlorobenzene (See Chlorobenzene)
Monomethyl aniline (See Methyl aniline)
Monomethyl hydrazine (See Methyl hydrazine)
Morpholine 8000 0.036 20 Tetrahydro-1,4-oxazine; (F)OV
-skin- Diethylenimide oxide
Naphtha (coal tar) 10,000 100 Naphtha, Crude solvent coal tar (F)OV Odor variable.
(PEL) naphtha, High solvent naphtha, Irritation also
Rubber solvent provides warning.
* TLV is lower than PEL. 66
 67
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Naphthalene 500 0.015 10 White tar, Naphthalin OV 3M 3510 Monitor.

See Comment E,
page 8.
Natural rubber latex 0.001 mg/m3 Caoutchouc; India rubber; N95
(as inhalable total -skin- Natural latex; Natural rubber;
proteins) NRL; Polyisoprene; Rubber
Nickel (as Ni)
–Elemental/metal 1.5 mg/m3 N95
(inhalable)
–Insoluble compounds 0.2 mg/m3 N95
(inhalable)
–Soluble compounds 0.1 mg/m3 N95
(inhalable)
Nickel carbonyl 7 0.5-3.0 0.001 Nickel tetracarbonyl SA(F) 0.05 ppm TLV-
(PEL) TWA. Unknown
sorbent effective-
ness.
Nickel subsulfide 0.1 mg/m3 N95
(inhalable)
Nicotine 35 mg/m3 0.5 mg/m3 3-(1-Methyl-2-pyrrolidyl) pyridine OV/P95 See Comment D,
-skin- page 7

Nitric acid 100 0.267 2 Aqua fortis, White fuming nitric SA(F) Ineffective sorbents
acid (WFNA), Red fuming nitric
acid (RFNA), Hydrogen nitrate
Nitric oxide 100 25 Nitrogen monoxide, NO SA Ineffective sorbents
p-Nitroaniline 300 mg/m3 3 mg/m3* Azoic diazo component 37, OV/N95 See Comment D,
-skin- p-Aminonitro-benzene, Fast red GG page 7
base, 4-Nitroaniline, PNA
Nitrobenzene 200 0.044 1 Nitrobenzol, Oil of mirbane OV
-skin-
p-Nitrochlorobenzene 344 0.1* PNCB, PCNB, OV Warning unknown
-skin- 4-Chloronitrobenzene,
p-Chloronitrobenzene,
1-Chloro-4-nitrobenzene
Nitroethane 1000 2.11 100 (F)OV
Nitrogen dioxide 50 0.186 3 Nitrogen tetroxide, NTO, Dinitrogen SA Ineffective sorbents.
tetroxide, Nitrogen peroxide PEL-5 ppm ceiling.
Nitrogen trifluoride 2000 10 Nitrogen fluoride SA Warning unknown.
Unknown sorbent
effectiveness.
Nitroglycerin (NG) 53 0.05* Glyceryl trinitrate, Trinitroglycerin OV Warning unknown
-skin-
Nitromethane 1000 3.5 20 Nitrocarbol OV
1-Nitropropane 2300 7.09 25 OV
2-Nitropropane 2300 4.85 10* sec-Nitropropane OV
* TLV is lower than PEL.
68
 69
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Nitrotoluene 200 0.017 2* Nitrotoluol OV/N95 See Comment D,

-skin- page 7
Nitrotrichloromethane (See Chloropicrin)
Nitrous oxide 50 Dinitrogen monoxide SA Warning unknown.
ineffective sorbents.
Nonane 1.26 200 n-Nonane OV
Nuisance particulates Particulates not otherwise This category in-
–Inhalable particulate 10 mg/m3* classified (PNOC) N95 cludes many mate-
–Respirable particulate 3 mg/m3* N95 rials. For oils, an R
or P95 filter/respirator
is recommended.
Octachloronaphthalene 0.1 mg/m3 Halowax™ 1051 OV/N95 See Comment D,
-skin- page 7
Octane (all isomers) 5000 5.75 300* Normal octane; Isooctane OV 3M 3510 Monitor
1-Octanol 0.006 50 Alcohol C-8, Capryl alcohol, OV
(AIHAWEEL) Heptyl carbinol, n-Octanol,
1-Hydroxyoctane, N-Octyl alcohol
1-Octene 2 75 a-Octylene, a-Octene OV
(AIHAWEEL)

Oil mist (mineral) 5 mg/m3 White mineral oil, Cutting oil, Heat- R or P95 As sampled by
treating oil, Hydraulic oil, Cable oil, method that does
Lubricating oil not collect vapor.
0.005 mg/m3 TLV-
TWA proposed for
oils that contain PNAs.
Osmium tetroxide 0.1 0.002 0.0002* Osmic acid SA(F) Poor warning.
(as Os) Unknown sorbent
effectiveness.
Oxalic acid 500 mg/m3 1 mg/m3 Oxalic acid dihydrate, OV/N95 See Comment D,
Ethane dioic acid page 7
p,p'-Oxybis(Benzene- 0.1 mg/m3 Benzenesulfonic acid, 4,4'-Oxybis- N95
sulfonyl hydrazide) dihydrazide; OBSH; Diphenyl ether
4,4'-disulfohydrazide
Oxygen difluoride 0.5 0.098 0.05 Difluorine monoxide, Fluorine SA Poor warning.
(ceiling) monoxide Unknown sorbent
effectiveness.
Ozone 10 0.051 Triatomic oxygen 6000 with 2078 or
–Heavy work 0.05 OZ 2097 filters recom-
–Moderate work 0.08 OZ mended by 3M for
–Light work 0.1 OZ 10X OEL. Not NIOSH
approved for ozone.
Paraffin wax fume 2 mg/m3 N95
Particulate polycyclic (See Coal tar pitch volatiles)
aromatic hydrocarbons
(PPAH)
* TLV is lower than PEL. 70
 71
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

PCBs (See Chlorodiphenyl)

Pentaborane 3 0.97 0.005 Stable pentaborane, Pentaboron SA Poor warning.
nonahydride Unknown sorbent
effectiveness.
Pentachloronaphthalene 0.5 mg/m3 Halowax™ 1013 OV/N95 See Comment D,
page 7
Pentaerythritol 10 mg/m3* Tetramethylolmethane N95
Pentaerythritol 1 mg/m3 PETA; 2-Propenoic acid, 2- OV/P95 See Comment D,
triacrylate (AIHAWEEL) (hydroxymethyl)-2-[[(1-oxo-2 page 7
propenyl) oxy] methyl]-1,3-
propanediylester
1,1,1,2,2-Pentafluoro- 1000 Pentafluoroethane; HFC-125; SA Ineffective sorbents
ethane (AIHAWEEL) Fluorocarbon 125
Pentane, all isomers 15,000 31.6 600* Normal pentane OV
2-Pentanone (See Methyl propyl ketone)
1,1,1,3,3-Pentafluoro- 300 HFC-245fa, R-245fa, SA
propane (AIHAWEEL) Genetron 245fa
Pentyl acetate 3000-9000 50 Isoamyl acetate, 1-pentanol acetate, OV See Coment E,
(all isomers) (depending 2-pentanol acetate, 3-Pentyl acetate, page 8. 3M 3510
on compound) 2-Methylbutyl acetate, 1,1-Dimethyl- Monitor.
propyl acetate

Perchloroethylene 500 6.17 25* Tetrachloroethylene, Perk (F)OV

Perchloromethyl 10 0.097 0.1 PMM, Trichloromethyl sulfur OV
mercaptan chloride
Perchloryl fluoride 385 11 3 Chlorine oxyfluoride SA Poor warning.
Unknown sorbent
effectiveness.
Perfluorobutyl ethylene 100 1-Hexane, 3,3,4,4,5,5,6,6, OV Short OV service life
6-nonafluoro; 1H, 1H,
2H-Perflourohexene; PFBE
Perfluoroisobutylene 0.01 Octafluoroisobutylene, SA Warning unknown.
(ceiling) Octafluoro-sec-butene, PFIB Short OV service
life.
Perlite 10 mg/m3* Sodium potassium aluminum N95
silicate
Persulfates
-Ammonium 0.1 mg/m3 N95
-Potassium 0.1 mg/m3 (F)N95
-Sodium 0.1 mg/m3 (F)N95
Pesticides (Call 3M at 1-800-243-4630)
Petroleum distillates 10,000 500 Petroleum naphtha, Aliphatic OV Odor variable
(naphtha) (PEL) petroleum naphtha, Petroleum ether
(95 to 115°C), Naphtha
(See Gasoline, Stoddard solvent
and VM&P Naphtha)
Petroleum gas 1000 Liquefied petroleum gas, LPG OV Short OV service life
Phenacyl chloride (See a-Chloroacetophenone)
* TLV is lower than PEL. 72
 73
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Phenol 250 0.011 5 Carbolic acid, Monohydroxy OV/N95

-skin- benzene
m-Phenylenediamine 0.1 mg/m3 1,3-Benzenediamine; OV/N95 SA preferable
m-Diaminobenzene if heat involved
o-Phenylenediamine 0.1 mg/m3 1,2-Benzenediamine; OV/N95 SA preferable
o-Diaminobenzene; Orthamine if heat involved
p-Phenylenediamine 0.1 mg/m3 p-Diaminobenzene; 1,4-Diamino- OV/N95 SA preferable
-skin- benzene if heat involved
Phenyl ether, vapor 0.03 1 Diphenyl ether, Diphenyl oxide OV See Comment E,
page 8. 3M 3510
Monitor.
Phenyl ether-biphenyl 0.001-0.01 1 Dowtherm™ A, Diphenyl oxide- OV See Comment E,
mixture, vapor (PEL) diphenyl mixture page 8
Phenylethylene (See Stryrene)
Phenyl glycidyl ether 0.1* Glycidyl phenyl ether; Phenyl OV Warning unknown
-skin- epoxypropyl ether; 1,2-Epoxy-3-
phenoxy propane; PGE
Phenylhydrazine 295 0.1* Hydrazinobenzene (F)OV Warning unknown
-skin-
Phenyl mercaptan 0.00094 0.1 Benzenethiol, Thiophenol OV
-skin-

Phenylphosphine 0.05 OV Warning unknown

(ceiling)
Phosgene 2 0.55 0.1 Carbonyl chloride, Carbon MG Poor warning
oxychloride, Chloroformyl chloride
Phosphine 200 0.14 0.3 Hydrogen phosphide, Phosphorus SA Unknown sorbent
hydride, Phosphorated hydrogen effectiveness.
Fumigant.
Phosphoric acid 10,000 mg/m3 1 mg/m3 White phosphoric acid, (F)N95 N95 with appropriate
o-phosphoric acid, eye and face
m-phosporic acid protection also
acceptable
Phosphorus (yellow) 0.1 mg/m3 White phosphorus, WP SA If no phosphorus
vapor or phosphine
gas present, N95
Phosphorus oxychloride 0.1 Phosphoryl chloride (F)AG Warning unknown
Phosphorus 200 mg/m3 0.1* Phosphoric chloride AG Warning unknown
pentachloride
Phosphorus pentasulfide 750 mg/m3 1 mg/m3 Phosphoric sulfide N95
Phosphorus trichloride 50 0.2 Phosphorus chloride (F)AG Warning unknown
Phthalic anhydride 1650 0.052 1* PAN; 1,3-Isobenzofurandione OV/N95
m-Phthalodinitrile 5 mg/m3 Isophthalodinitrile, IPN, N95
m-Dicyanobenzene
2-Picoline 0.003 2 a-Picoline, 2-Methyl-pyridine OV
-skin-
(AIHAWEEL)
* TLV is lower than PEL. 74
 75
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

3-Picoline 2 b-Picoline, 3-Methyl-pyridine OV Warning unknown

-skin-
(AIHAWEEL)
4-Picoline 2 g-Picoline, 4-Methyl-pyridine OV Warning unknown
-skin-
(AIHAWEEL)
Picric acid 0.0005 mg/m 0.1 mg/m3
3
2,4,6-Trinitrophenol, Lyddite, N95
-skin- Pertite, Shimose, Melinite
Piperazine 5 mg/m3 Dihydrochloride salt of N95
dihydrochloride diethylenediamine
Piperidine 0.372 1 Hexahydropyridine (F)OV
(AIHAWEEL)
Plaster of Paris (See Calcium sulfate)
Platinum (as Pt)
–Metal 1 mg/m3 N95
–Soluble salts 0.002 mg/m3 (F)N95
Polychlorinated biphenyls (See Chlorodiphenyls)
Polyethylene glycols 10 mg/m3 PEG, Polyoxyethylene, PGE R or P95 See Comment G,
(AIHAWEEL) page 9
Polypropylene glycols 10 mg/m3 PPG R or P95 See Comment G,
(AIHAWEEL) page 9

Portland cement 10 mg/m3* Hydraulic cement, Cement, N95

(less than 1% quartz) Portland cement silicate
Potassium bromate 0.1 mg/m3 Bromic acid, Potassium salt N95
(AIHAWEEL)
Potassium hydroxide 2 mg/m3 Caustic potash, Lye, N95
(ceiling) Potassium hydrate
Propane 2690 1,000 Dimethyl methane n-Propane; SA Ineffective sorbents
Propane, various grades
n-Propanol 4,000 2.6 200 Alcohol, n-Propyl alcohol, F(OV) See comment E,
-skin- 1-Propanol, Ethylcarbinol page 8
Propargyl alcohol 0.015 1 2-Propyn-1-ol OV
-skin-
Propargyl bromide <2 0.1 Bromopropyne; Propyne, 3-bromo; OV Questionable
-skin- 1-Bromo-2-propyne; 3-Bromopropyne, warning properties
(AIHAWEEL) gamma-Bromoallylene
2-Propenoic Acid, <1 5 Isooctyl acrylate; IOA OV
Isooctyl ester (AIHAWEEL)
B-Propiolactone 0.5 Hydroacrylic acid, beta-lactone; (F)OV Warning unknown
3-Hydroxypropionic acid;
Propiolactone; 3-Hydroxy-beta-
lactone; beta-Proprolactone; BPL
Propionaldehyde 0.145 20 1-Propanal, Methylacetaldehyde, SA Very short OV
Propylaldehyde service life.
Propionic acid 0.037 10 Methylacetic acid, Ethylformic acid (F)OV

* TLV is lower than PEL.

76
 77
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

n-Propyl acetate 8000 0.575 200 Propylacetate; Acetic acid, (F)OV 3M 3510 Monitor
n-propyl ester
Propylene dichloride 2000 0.851 75 1,2-Dichloropropane OV 3M 3510 Monitor
Propylene glycol
–Vapor and aerosol 50 1,2-Propanediol; 1,2-Dihydroxy- OV/P95 See Comment G,
(AIHAWEEL) propane; Methyl glycol page 9
–Aerosol only 10 mg/m3 R or P95 See Comment G,
(AIHAWEEL) page 9
Propylene glycol 0.231 0.05 1,2-Propylene glycol dinitrate; (F)OV Poor warning
dinitrate -skin- 1,2-Propanediol dinitrate
Propylene glycol 0.003 100 1-Methoxy-2-propanol OV 3M 3510 Monitor
monomethyl ether
Propylene glycol 50 Glycol ether PM acetate; OV Warning unknown.
monomethyl ether (AIHAWEEL) PGMEA; 1-Methyoxy-2- 3M 3510 Monitor.
acetate propanol acetate; 2-Methoxy-
1-methylethyl acetate;
1-Methoxy-2-acetoxypropane
Propylene imine 500 2* 2-Methylaziridine (F)OV Warning unknown
-skin-
Propylene oxide 2000 33.1 2 1,2-Epoxypropane; Propene oxide; OV Poor warning.
Methyloxirane; 2,3-Epoxypropane; 3M 3550 Monitor.
1,2-Propylene oxide

n-Propyl nitrate 2000 50 25 Nitric acid n-propylester OV Poor warning

Propyne (See Methyl acetylene)
Pyridine 0.17 1 Azabenzene, Azine OV
Pyrocatechol (See Catechol)
Quartz (See Silica, crystalline)
Quinoline 0.015 0.1 Chinoline, Leukoline, 1-Benzazine, (F)OV
(AIHAWEEL) 1-Azana-phthalene, Lencol
Quinone 66 0.012 0.1 p-Benzoquinone (F)OV/N95
RDX (See Cyclonite)
Resorcinol 10 m-Dihydroxybenzene; N95 OV/N95 may be
1,3-Benzenediol preferable if heat is
involved
Rhodium (as Rh)
–Metal 0.1 mg/m3 N95
(PEL)
–Insoluble compounds 0.1 mg/m3 N95
(PEL)
–Soluble compounds 0.001 mg/m3 N95
(PEL)
Rouge 10 mg/m3* Red iron oxide, Red oxide, N95
Blended red oxides
Rubber solvent (See Naphtha [coal tar])

* TLV is lower than PEL. 78

 79
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Selenium and 0.2 mg/m3 N95

compounds (as Se)
Selenium hexafluoride 5 0.05 SA Warning unknown.
Unknown sorbent
effectiveness.
Silane (See Silicon tetrahydride)
Silica, amorphous
–Diatomaceous earth
Inhalable particulate 10 mg/m3 Diatomite, Silicon dioxide N95
Respirable particulate 3 mg/m3* (amorphous), Diatomaceous silica N95
–Precipitated silica 10 mg/m3 N95
–Silica, fume 2 mg/m3 By-product of electro-metallurgical N95
(respirable) processes
–Silica, fused 0.1 mg/m3 N95
(respirable)
–Silica gel 10 mg/m3 N95
Silica, crystalline
–Cristobalite 0.05 mg/m3 N95
(respirable)
–Quartz 0.05 mg/m3 N95
(respirable)
–Tridymite 0.05 mg/m3 N95
(respirable)

–Tripoli 0.1 mg/m3 N95

(respirable)
Silicon 10 mg/m3* N95
Silicon carbide N95
- Nonfibrous particles
(containing no asbestos
and <1% cystalline silica)
Inhalable particulate mass 10 mg/m3 N95
Respirable particulate mass 3 mg/m3 N95
- Fibrous forms
(including whiskers)
Respirable fibers 0.1 f/cc N95
Silicon tetrahydride 5 Silane SA Warning unknown
Silver, metal and soluble 0.01 mg/m3 N95
compounds (as Ag) (PEL)
Soapstone 3 mg/m3 Massive talc, Steatite, Soapstone N95
(respirable) silicate
Sodium azide Hydrazoic acid
–as Sodium azide 0.29 mg/m3 N95
(ceiling)
–as Hydrazoic acid 0.11 SA Warning unknown.
vapor (ceiling) Unknown sorbent
effectiveness.
Sodium bisulfite 5 mg/m3 Sodium hydrogen sulfite AG/N95 N95 alone suitable
if irritation eliminated

* TLV is lower than PEL.

80
 81
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Sodium fluoroacetate 5 mg/m3 0.05 mg/m3 1080, Sodium monofluoroacetate, N95

-skin- SFA
Sodium hydroxide 250 mg/m3 2 mg/m3 Caustic soda, Soda lye, Lye N95
(ceiling)
Sodium hypochlorite 2 mg/m3 Hypochlorous acid, sodium salt; N95 15 minute TWA
(AIHAWEEL) Sodium oxychloride
Sodium metabisulfite 5 mg/m3 Sodium pyrosulfite AG/N95 N95 alone suitable
if irritation eliminated
Starch 10 mg/m3* Corn starch N95
Stearates 10 mg/m3 Aluminum stearate, Calcium N95
stearate, Glyceryl stearate, Lithium
stearate, Potassium stearate, Zinc
stearate
Stibine 40 0.1 Hydrogen antimonide, Antimony SA Warning unknown.
trihydride Unknown sorbent
effectiveness.
Stoddard solvent 5150 1-30 100* Dry cleaning safety solvent, OV 3M 3510 Monitor
Mineral spirits
Strontium chromate 0.0005 mg/m3 Strontium yellow, N95
(as Cr) C.I. pigment yellow 32
Strychnine 3 mg/m3 0.15 mg/m3 N95

Styrene 5000 3.44 20* Phenylethylene, Vinyl benzene, OV 3M 3510 Monitor

Cinnamene, Styrene monomer
Subtilisins 0.00006 Proteolytic enzymes as 100% SA Difficult to measure
mg/m3 crystalline enzyme 10X OEL. N95
(ceiling) acceptable with
suitable air
sampling data.
Sucrose 10 mg/m3* Table sugar, Saccharose N95
Sulfur dioxide 100 0.708 2* SO2 AG Irritation and taste
also provide warning
Sulfur hexafluoride 1000 SF6 SA Warning unknown.
Unknown sorbent
effectiveness.
Sulfuric acid 0.2 mg/m3 Hydrogen sulfate; Matting acid; (F)N95 N95 with appropriate
(Thoracic Oil of vitriol; Sulphuric acid; eye protection
particulate mass) Vitriol brown oil acceptable if
irritation prevented
Sulfur monochloride 10 0.001 1 Sulfur chloride, Sulfur subchloride (F)AG
(ceiling)
Sulfur pentafluoride 1 0.01 Disulfur decafluoride AG Warning unknown
(ceiling)
Sulfur tetrafluoride 0.1 AG Warning unknown
(ceiling)
Sulfuryl fluoride 1000 5 SA Warning unknown.
Unknown sorbent
effectiveness.
* TLV is lower than PEL.
82
 83
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Synthetic vitreous fibers

–Continuous filament 1 f/cc N95
glass fibers
–Glass wool fibers 1 f/cc N95
–Refractory ceramic fibers 0.2 f/cc N95
–Rock wool fibers 1 f/cc N95
–Slag wool fibers 1 f/cc N95
–Special purpose 1 f/cc N95
glass fibers
Talc (containing no 2 mg/m3* Hydrous magnesium silicate, N95
asbestos) (respirable) Steatite talc, Non-fibrous talc,
Non-asbestiform talc
Talc (containing asbestos) (See Asbestos)
Tantalum, metal and 5 mg/m3 N95
oxide dusts (as Ta)
Tellurium and 0.1 mg/m3 N95
compounds (as Te)
Tellurium hexafluoride 1 0.02 SA Warning unknown.
(as Te) Unknown sorbent
effectiveness.
Terephthalic acid 10 mg/m3 p-Phthalic acid; TPA; N95
Benzene-p-dicarboxylic acid;
1,4 Benzenedicarboxylic acids,
Tephthol

Terphenyls 0.5* o-Terphenyl, m-Terphenyl, N95 OV/N95 may be

(ceiling) p-Terphenyl, Mixed terphenyls, preferable if heat
Diphenyl benzenes involved
1,1,1,2-Tetrachloro- 15,000 500 Refrigerant 112a; Halocarbon 112a; OV Warning unknown
2,2-difluoroethane 2,2-Difluoro-1,
1,1,2-tetrachloroethane;
Freon® 112a
1,1,2,2-Tetrachloro- 15,000 500 Refrigerant 112, Halocarbon 112, OV Warning unknown
1,2-difluoroethane Freon® 112
1,1,2,2-Tetrachloro- 150 0.21 1* Acetylene tetrachloride OV 3M 3510 Monitor
ethane -skin-
Tetrachloroethylene (See Perchloroethylene)
Tetrachloromethane (See Carbon tetrachloride)
Tetrachloronaphthalene 2 mg/m3 Halowax™, Seekay wax, Nibren OV/N95 See Comment D,
wax page 7
2,3,5,6-Tetrachloropyridine 5 mg/m3 Pyridine, 2,3,5,6-tetrachloro OV/N95 See Coment D,
(AIHAWEEL) page 7
Tetrachlorosilane 1 Silicon tetrachloride, Silicon AG/N95 Warning unknown.
(ceiling) chloride Reacts rapidly with
(AIHAWEEL) moisture yielding
HCI and silica.
Tetraethylene glycol 1 mg/m3 TTEGDA; 2-Propionic acid, oxy-bis- OV/P95 See Comment D,
diacrylate (AIHAWEEL) (2,1-ethane-diyoxy-2,1-ethanediol) page 7
ester

* TLV is lower than PEL. 84

 85
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Tetraethylene pentamine 5 mg/m3 1,2-Ethandiamine, N-(2-aminoethyl) F(OV)

(aerosol) -skin- -N'-(2-((2-amino)ethyl); Tetran 1,4,7,
(AIHAWEEL) 10,13-Pentaazatridecane;
DEH 26; TEPA; Tetraethyl pentamine
Tetraethyl lead 40 mg/m3 0.075 mg/m3 TEL, Lead tetraethyl, Motor fuel OV Warning unknown
(as Pb) (PEL) anti-knock compound
-skin-
1,1,1,2-Tetrafluoroethane 1000 Tetrafluoroethane, HFC134a, SA Ineffective sorbents
(AIHAWEEL) HFA134a, Fluorocarbon 134a
Tetrafluoroethylene 2 Perfluoroethene; Perfluoroethylene; SA
TFE Tetrafluoroethene; 1,1,2,2-
Tetrafluoroethylene
Tetrahydrofuran 3.8 50 Diethylene oxide, Tetramethylene OV 3M 3510 Monitor
-skin- oxide, THF
Tetrahydrofurfuryl 2 Tetrahydro-2-furanmethanol; OV Warning unknown
alcohol (AIHAWEEL) Tetrahydro-2-furancarbinol;
Tetrahydro-2 furylmethanol
Tetrakis (hydroxymethyl) 2mg/m 3
Proban CC; Pyroset TKC; Retardol C; N95
phosphonium chloride THPC; Tetrahydroxymethyl
phosphonium chloride

Tetrakis (hydroxymethyl) 2mg/m3 Octakis (hydroxymethyl) N95

phosphonium sulfate phosphonium sulfate; Pyroset TKO;
Retardol S; THPS; bis tetrakis-
(hydroxymethyl) phosphonium sulfate
Tetramethyl lead 40 mg/m3 0.075 mg/m3 TML, Lead tetramethyl, Motor fuel OV Warning unknown
(as Pb) (PEL) anti-knock compound
-skin-
Tetramethyl 5 0.5 TMSN OV Warning unknown
succinonitrile, vapor -skin-
Tetranitromethane 5 0.005* Tetan OV Warning unknown
Tetrasodium 5 mg/m3 Sodium pyrophosphate N95
pyrophosphate
Tetryl 1.5 mg/m3 2,4,6-Trinitrophenyl- N95
methylnitramine;
N-Methyl-N-2,4,6-tetranitroaniline;
Nitramine; Tetralite
Thallium
–Elemental and soluble 20 mg/m3 0.1 mg/m3 Thallium acetate, Thallium N95
compounds (as TI) -skin- carbonate, Thallium hydroxide, etc.
4,4'-Thiobis(6-tert-butyl- 10 mg/m3* 4,4'-Thiobis(3-methyl-6-tert-butyl N95
m-cresol) phenol)
Thioglycolic acid 1 Mercaptoacetic acid, Thioranic (F)OV Warning unknown
-skin- acid

* TLV is lower than PEL. 86

 87
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Thionyl chloride 1 Sulfurous oxychloride, Sulfur (F)AG Warning unknown

(ceiling) oxychloride
Tin (as Sn)
–Metal and inorganic 400 mg/m3 2 mg/m3 N95
compounds
(except SnH4)
–Organic compounds 0.1 mg/m3 OV/N95 See Comment D,
-skin- page 7
Titanium dioxide 10 mg/m3* Rutile, Anatase, Brookite N95
Titanium tetrachloride 0.5 mg/m 3
Titanium chloride AG/N95
(AIHAWEEL)
Toluene 2000 0.16 50* Toluol, Phenyl methane, Methyl OV 3M 3510 Monitor
-skin- benzene
Toluene diamine 0.005 Diaminotoluene; TDA; N95
-skin- Tolyenediamine
(AIHAWEEL)
Toluene-2,4 or 0.17 0.005* 2,4 or 2,6-Toluene diisocyanate OV/N95 Poor warning
2,6-diisocyanate 2,4- or 2,6-TDI
(or as a mixture)

p-Toluenesulfonyl 5 mg/m3 4-Methyl-benzenesulfonyl (F)OV/AG/N95 See Comment D,

chloride (ceiling) chloride, Tosyl chloride page 7. HCI and
(AIHAWEEL) p-toluene sulfuric
acid produced by
hydrololysis.
m-Toluidine 0.46-5.9 2 m-Aminotoluene (F)OV Questionable
-skin- warning
o-Toluidine 100 0.025-6.6 2* o-Aminotoluene; (F)OV Questionable
-skin- o-Methylaniline; warning
1-Methyl-1,2-amino-benzene;
2-Methylaniline
p-Toluidine 0.027-3.2 2 p-Aminotoluene (F)OV Questionable
-skin- warning
Tributyl phosphate 125 0.2* Tri-n-butyl phosphate, TBP OV/P95
Trichloroacetic acid 0.295 1 TCA OV/AG Irritation also
provides warning
1,2,4-Trichlorobenzene 2.91 5 OV
(ceiling)
1,1,1-Trichloroethane (See Methyl chloroform)
1,1,2-Trichloroethane 500 10 Vinyl trichloride, (F)OV Warning unknown.
-skin- b-Trichloroethane 3M 3510 Monitor.
Trichloroethylene 1000 1.36 50* Ethylene trichloride, Triclene™ OV 3M 3510 Monitor

* TLV is lower than PEL. 88

 89
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Trichlorofluoromethane 10,000 16.3 1000 FC-11, Freon® 11, Fluorotri- SA Short OV service
(ceiling) chloromethane, Trichloromono- life
fluoromethane
Trichloronaphthalene 5 mg/m3 Halowax™, Seekay wax, OV/N95 See Comment D,
-skin- Nibren wax page 7
Trichloronitromethane (See Chloropicrin)
1,2,3-Trichloropropane 1000 100 10* Allyl trichloride, Glycerol (F)OV Poor warning
-skin- trichlorohydrin, Glycerin
trichlorohydrin, Trichlorohydrin
Trichlorosilane 0.5 Silicochloroform (F)AG Warning unknown
(ceiling)
1,1,2-Trichloro-1,2,2- 4500 487 1000 Halocarbon 113, Refrigerant 113, SA Short OV service
trifluoroethane TTE, Freon® 113, FC-113 life. 3M 3530
Monitor.
Tridymite (See Silica, crystalline)
Triethanolamine 5 mg/m3 Daltogen; 2,2',2"-Nitrilo- OV/P95 Warning unknown.
triethanol; Sterolamide; TEA; See Comment D,
Trihydroxytriethylamine page 7.
Triethoxysilane 0.05 Silane, triethoxy SA(F) Unknown sorbent
(AIHAWEEL) effectiveness

Triethylamine 0.001 1 N-Trimethylamine; N, F(AM) AIHA WEEL is lower

(AIHAWEEL) N-Dimethylmethanamine; TMA than TLV of 5 ppm.
AM not specifically
approved
Triethylene glycol 1 mg/m3 TREGDA; 2-Propenoic acid, OV/P95
diacrylate (AIHAWEEL) 2-ethanediyl-bis-(oxy-2,1-ethanediyl)
ester
Triethylenetetramine 1 N,N’-bis(2-aminoethyl)-1,2,ethane OV See Comment E,
-skin- diamine; 1,4,7,10-Tetraazadecane; page 8. R or P filter,
1,8-diamino-3,6-diazaoctane; 3,6- if filter is required.
diazaoctane-1,8-diamine; Trientine;
TETA; TECZA
Trifluorobromomethane 50,000 16.3 1000 Halon™ 1301, Halocarbon 13B1, SA Short OV service
Refrigerant 13B1, life
Bromotrifluoromethane,
Freon® 13B1
1,1,1-Trifluoro-2,2- 50 HCFC-123; FC-123; SA Short OV service
dichloroethane Hydrofluorocarbon 123 life
1,1,1-Trifluoroethane 1000 HFC-143a; FC-143a; SA Ineffective sorbents
(AIHAWEEL) Hydrofluorocarbon 143a
2,2,2-Trifluoroethanol 0.3 Ethanol, 2,2,2-Trifluoro; SA Warning unknown.
(AIHAWEEL) 2,2,2-Trifluoroethyl alcohol; TFE Ineffective sorbent.
1,3,5-Triglycidyl-s- 0.05 mg/m3 Araldite PT-810; TEPIC; 1,3,5- N95
triazinetrione Triazine-2,4,6-(1H,3H,5H)-trione

90
* TLV is lower than PEL.
 91
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Trimellitic anhydride 0.04 mg/m3 TMA OV/N95 Chemical

(ceiling) manufacturer’s
recommendation.
See Comment D,
page 7.
Trimethoxysilane 0.05 (F)OV Warning unknown
(AIHAWEEL)
Trimethylamine 0.001 1 N-Trimethylamine; (F)AM AIHAWEEL is lower
(AIHAWEEL) N,N-Dimethylmethanamine; TMA than TLV of 5 ppm.
AM not specifically
approved.
Trimethyl benzene 2.4 25 Mesitylene, Pseudocumene, OV 3M 3510 Monitor
Hemimellitene
Trimethylchlorosilane 5 Chlorotrimethylsilane; (F)OV/AG
(ceiling) trimethylchloro silicane;
(AIHAWEEL) monochlorotrimethylsilicon
Trimethyl phosphite 0.001 2 Phosphorus acid trimethylester, (F)OV
Methyl phosphite
Trimethylolpropane 1 mg/m3 2-Propenoic acid, 2-ethyl-2(((1- OV/P95
triacrylate (AIHAWEEL) oxo-2-propenyl) oxy) methyl)-1,3-
propanediyl ester

Trimethylolpropane 1 mg/m3 Acrylic acid, triester w/2-ethyl OV/P95

trimethacrylate (AIHAWEEL) 2 (hydroxymethyl) 1,3 propanediol
2,4,6-Trinitrophenol (See Picric acid)
2,4,6-Trinitrotoluene 1000 mg/m3 0.1 mg/m3* TNT, Trinitrotoluol, Trinitrotoluene, OV/N95 See Comment D,
(TNT) -skin- sym-Trinitrotoluene page 7
Triorthocresyl 40 mg/m3 0.1 mg/m3 o-Tritolyl phosphate, TCP, TOCP R or P95
phosphate -skin- tricresylphosphate
Triphenyl amine 5 mg/m3 N95
Triphenyl phosphate 1000 mg/m 3
3 mg/m3 Phenyl phosphate, TPP N95 OV/N95 preferable
if heat involved
Tripoli (See Silica, crystalline)
Trisodium phosphate 5 mg/m3 TSP, Sodium o-phosphate (F)N95 N95 acceptable
(AIHAWEEL) with appropriate
eye/face protection.
15 min TWA.
Tungsten (as W)
–Insoluble compounds 5 mg/m3 N95
–Soluble compounds 1 mg/m3 N95
Turpentine (wood) 1500 100-200 20 Gumspirits, Turps, Wood (F)OV See Comment E,
turpentine, Gum turpentine page 8

92
* TLV is lower than PEL.
 93
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Uranium (as U)
–Insoluble 30 mg/m3 0.05 mg/m3 N95 See 10 CFR 20
compounds (PEL) Subpart H
–Soluble 20 mg/m3 0.05 mg/m3 AG/N95 Halides
compounds (PEL)
N95 Other
Urea 10 mg/m3 Carbamide, Carbonyldiamide, N95 AM/N95 may be
(AIHAWEEL) Carbonyldiamine, isourea preferable if
heat is involved
n-Valeraldehyde 0.006 50 Pentanal, Valeric aldehyde (F)OV
Vanadium pentoxide, 70 mg/m3 0.05 mg/m3* Vanadic anhydride, N95
respirable dust or (respirable) Vanadium oxide
fume (as V2O5)
Vegetable oil, mists 10 mg/m3* R or P95
Vinyl acetate 0.603 10 1-Acetoxyethylene, Ethenyl acetate (F)OV 3M 3510 Monitor
Vinyl benzene (See Styrene)
Vinyl bromide 0.5 Bromoethylene SA(F) Warning unknown.
Short OV service
life.

Vinyl chloride 0.253 1 Chloroethylene, Chloroethene, SA OSHA allows OV for

(PEL) Monochloroethylene, VC, Vinyl very short use
chloride monomer, VCM periods. See 29
CFR 1910.1017.
Vinyl cyanide (See Acrylonitrile)
4-Vinylcyclohexene 0.1 4-Vinyl-1-cyclohexene; OV Warning unknown
4-Vinylcyclohexene-1-
butadiene dimer;
4-Ethenyl-1-1-cyclohexene;
1-Vinylcyclohexene-3,4-vinyl-
cyclohex-1-ene; VCH
Vinyl cyclohexene 0.1 Vinylcyclohexane dioxide, (F)OV Warning unknown
dioxide -skin- Vinylhexane dioxide
Vinyl fluoride 1 Fluoroethene, Fluoroethylene, SA Warning unknown.
Monofluoroethylene Short service life.
Vinylidene chloride 35.5 1 1,1-Dichloroethylene; VDC OV Poor warning
(PEL)
Vinylidene fluoride 500 1,1-Difluoroethene; 1,1-Difluoro- SA Warning unknown.
ethylene; Ethene, 1,1-difluoro; Ineffective sorbents.
Ethylene, 1,1-difluoro; Halocarbon
1132A; VDF; Vinylidene difluoride
N-Vinyl-2-pyrrolidone 0.05 1-Ethenyl-2-pyrrolidinone; OV
Vinylbutyrlactam; Vinylpyrrolidinone;
1-Vinylpyrrolidinone; N-Vinylpyrrolidinone;
Vinylpyrrolidone
94
* TLV is lower than PEL.
 95
NOTE: For explanation of column headings, refer to Format Explanation starting on page 3.
Odor Respirator
IDLH Threshold OEL Recommended
Chemical Name (PPM) (PPM) (PPM) Synonyms (to 10X OEL) Comments

Vinyl toluene 5000 10 50* Methylstyrene, Tolyethylene (F)OV See Comment E,

page 8. 3M 3510
Monitor.
Vinyltrichlorosilane 1 Trichlorovinylsilane; Trichlorovinyl OV/AG
(ceiling) silicon; Vinylsilicon trichloride; Silane
(AIHAWEEL) trichlorovinyl; Silane trichloroethenyl;
trichlorovinyl silicane
VM & P Naphtha 1-40 300 Varnish Makers’ & Painters’ (F)OV 3M 3510 Monitor
Naphtha, Ligroin
Welding fumes (not 5 mg/m3 N95
otherwise classified)
Wood, dust
(All varieties except Western Red Cedar) 1 mg/m3* N95
(Western Red Cedar) 0.5 mg/m3* N95
Xylene (o-, m-, and 1000 0.851 100 1,2-Dimethyl-benzene; OV 3M 3510 Monitor
p-isomers) 0.324 1,3-Dimethyl-benzene;
0.49 1,4-Dimethyl-benzene
m-Xylene a,a'-diamine 0.1 mg/m3 MXDA OV/N95 See Comment D,
(ceiling) page 7
-skin-

* TLV is lower than PEL.

Xylidine 150 0.005- 0.5* Aminodiymethyl benzene, OV/N95

(as inhalable aerosol 0.06 -skin- Aminoxylene dimethylaniline,
and vapor) Dimethylaminobenzene
Yttrium, metal and 1 mg/m3 Specific compound N95
compounds (as Y)
Zinc chloride, fume 4800 mg/m3 1 mg/m3 N95
Zinc chromate (as Cr) 0.01 mg/m3* Basic zinc chromate, Zinc N95
potassium chromate, Zinc yellow
Zinc oxide
(Respirable particulate mass) 2 mg/m3 Zincite, Zinc white N95
Zinc stearate 10 mg/m3* Synpro stearate, Zinc distearate, N95
Dermarone
Zirconium and 500 mg/m3 5 mg/m3 N95
compounds (as Zr)
* TLV is lower than PEL.

96
 97

3M™ Software Library

3M offers the only software library that • Alerts you when fit testing, training Operating System: Windows® 3.1,
helps you choose the right respirator and sessions, exposure assessments and Windows® 98, Windows® NT®, Windows®
comply with respiratory protection and medical updates are due. XP or Windows® for Workgroups.
hearing conservation regulations. • Choose from General industry,
Automotive aftermarket or Construction Memory: 16 MB RAM memory and a
3M™ Select Software© versions. minimum of an additional 16 MB virtual
• Helps you select the most appropriate memory.
respirator for the job. 3M™ Hearing Compliance Software
• Just point and click to select the • Helps you develop and manage your
appropriate respirator. hearing conservation program. 3M™ Service Life Software
• You’ll know which respirator to use in a • Helps you develop a customized
variety of different environments. program manual. 3M’s Service Life Software helps
• Analyze combinations of over 600 • Organizes record keeping. calculate end of service life for 3M
different contaminants in varying • Provides extensive reporting capability. organic vapor respirator cartridges
concentrations. • Integrates with 3M™ Respirator based on workplace conditions such as
Compliance Software. contaminant concentration, temperature,
3M™ Respirator Compliance Software work rate and atmospheric pressure.
• Helps you develop and manage your PC System Requirements:
respiratory protection program. Computer: Minimum 486 IBM PC or 3M™ Service Life Software can be
• Eliminates the guesswork. Helps you fully compatible, CD-ROM drive required accessed at the 3M web site:
develop a complete respiratory to install software on hard drive. VGA www.3M.com/OccSafety.
protection program that complies with graphics or compatible adapter. 15 MB
the latest regulations. required on hard drive for each program.

3M™ Select Software© 3M Select Software©

3M Select Software© helps you choose the Features Benefits
proper respirator for different hazardous
environments. Simple to use Just point and click, then follow the prompts to select an
appropriate respirator. Interactive user’s manual is on-line.
Accurate Knowing the contaminants and their concentrations,
the program leads you to an appropriate respirator
recommendation.
Explains the solution Helps you understand the selection process.
Combines contaminant Includes IDLH, exposure limit, odor threshold, molecular
reference information from weight and more. No need to acquire and wrestle with a
a variety of resources pile of documents. Saves time.
Uses health hazard data Analyzes combinations of over 600 different contaminants
to calculate proper in varying concentrations.
solutions when multiple
contaminants are present

Traceable audit OSHA requires an audit trail. View or print the audit trail
reports based on the contaminants and concentrations you’ve
selected.

3M™ Health and Safety Software Library 98

 99

3M™ Respirator 3M Respirator Compliance Software

Compliance Software Features Benefits
Helps Manage
Respiratory Protection Includes 42 CFR 84 Eliminates research and legwork.
approved products and incor- Helps you comply with the latest regulations.
3M Respirator Compliance porates changes to the OSHA
Software helps you develop 1910.134 Respiratory
Protection Standard
and manage your respiratory
protection program. Simple to use Three main sections: Workplace Records, Standard Operating Procedures and
Respiratory Protection Program requirements. The Windows® based program is
menu-driven – just point and click. Interactive user’s manual is on-line.
Helps you comply with Helps you develop a customized written respiratory protection program that
OSHA or CSA regulations. meets OSHA or CSA regulations.

Automates record-keeping Alerts you when fit testing, training sessions, medical updates and exposure
assessments are due.
Prepares you for an audit Just push a button! Print selected audit materials, or an entire program for
auditors, employees or administrators to review.
Customized versions available Choose from General industry, Automotive aftermarket or Construction
for different industries versions.

Integrates with 3M Hearing Allows you to monitor both respiratory protection and hearing conservation
Compliance Software programs from one package.
Works on a LAN Your employees can work from various locations.

3M™ Hearing 3M Hearing Compliance Software

Compliance Software
Features Benefits
3M Hearing Compliance
Software helps you develop Helps you develop a Helps ensure that your program complies with OSHA regulations.
and manage your hearing customized program
conservation program. manual

Organizes record-keeping Tracks audiogram dates, standard threshold shifts, personal and area
exposure assessments and training records.

Provides extensive Alerts you when tasks are coming due. Allows you to view the status
reporting capability of records by locations, people or types of record. Prepares you for
an audit.

Integrates with 3M Allows you to monitor both respiratory protection and

Respirator Compliance hearing conservation programs from one package.
Software

Imports employee names No need to type in employee names and numbers.

Just load them in from existing programs.

100
 101

3M™ Respiratory Protection Training Courses

3M offers two training courses that provide information for The 2006 schedule of course dates and locations is listed below.
effectively operating a respiratory protection program. The courses For more information or to enroll, please do one of the following:
are unique among those offered by respirator manufacturers in that • Phone 1-800-659-0151, ext. 275
they are based on the technical and regulatory aspects of a sound • Visit our web site at www.3M.com/OccSafety
respirator program, rather than specific products. A large equipment and follow the prompts
display from a number of respirator manufacturers is used to
supplement the classroom and workshop presentations. • Dial the 3M Fax On Demand system at 1-800-646-1655,
request document #2023
Respiratory Protection is a comprehensive 4 1/2 day course intended
for anyone who manages all or part of a respiratory protection
program. All respirator types and each element of a respirator 2006 Schedule/Location*
program are thoroughly discussed. Workshop sessions are used January 23-27 . . . . . . . . . . . . . . . . . Phoenix, AZ
extensively to reinforce the course material. April 3-7 . . . . . . . . . . . . . . . . . . . . . Raleigh, NC
Current Topics in Respiratory Protection is a 2 day course July 24-28 . . . . . . . . . . . . . . . . . . . . Minneapolis, MN
designed to provide the latest in technical and regulatory information September 25-29 . . . . . . . . . . . . . . . Portland, OR
to experienced program managers. October 23-27 . . . . . . . . . . . . . . . . . Longmont, CO
* Courses are held in the metropolitan areas identified. Visit our
web site at www.3M.com/OccSafety or call 1-800-659-0151,
ext. 275 for the latest information on specific locations.
Note to printer: This inside back cover is a fold-out. This top edge is the Spine Edge.

Respirator Codes & Descriptions

For use with the Chemical Compound Guide (beginning on page 15)
Respirator Code Description Respirator Code Description

N95 Half Facepiece N95 Particulate Filter FORM Half Facepiece Formaldehyde
(F)N95 Full Facepiece with N95 Particulate Filter FORM/N95 Half Facepiece Formaldehyde & N95
P95 Half Facepiece P95 Particulate Filter Particulate Filter
(F)P95 Full Facepiece with P95 Particulate Filter FORM/P95 Half Facepiece Formaldehyde & P95
P100 Half Facepiece P100 Particulate Filter Particulate Filter
(F)P100 Full Facepiece with P100 Particulate Filter FORM/P100 Half Facepiece Formaldehyde & P100
OV Half Facepiece Organic Vapor Particulate Filter
OV/N95 Half Facepiece Organic Vapor & N95 (F)FORM Full Facepiece with Formaldehyde
Particulate Filter (F)FORM/N95 Full Facepiece with Formaldehyde & N95
OV/P95 Half Facepiece Organic Vapor & P95 Particulate Filter
Particulate Filter (F)FORM/P95 Full Facepiece with Formaldehyde & P95
OV/P100 Half Facepiece Organic Vapor & P100 Particulate Filter
Particulate Filter (F)FORM/P100 Full Facepiece with Formaldehyde & P100
(F)OV Full Facepiece with Organic Vapor Particulate Filter
(F)OV/N95 Full Facepiece with Organic Vapor & N95 HF Half Facepiece Hydrogen Fluoride
Particulate Filter HF/P95 Half Facepiece Hydrogen Fluoride & P95
(F)OV/P95 Full Facepiece with Organic Vapor & P95 Particulate Filter
Particulate Filter (F)HF Full Facepiece with Hydrogen Fluoride
(F)OV/P100 Full Facepiece with Organic Vapor & P100 (F)HF/P95 Full Facepiece with Hydrogen Fluoride & P95
Particulate Filter Particulate Filter
AG Half Facepiece Acid Gas HG Half Facepiece Mercury Vapor or Chlorine Gas
AG/N95 Half Facepiece Acid Gas &N95 HG/N95 Half Facepiece Mercury Vapor or Chlorine Gas
Particulate Filter & N95 Particulate Filter
AG/P95 Half Facepiece Acid Gas & P95 HG/P95 Half Facepiece Mercury Vapor or Chlorine Gas
Particulate Filter & P95 Particulate Filter
AG/P100 Half Facepiece Acid Gas & P100 HG/P100 Half Facepiece Mercury Vapor or Chlorine Gas
Particulate Filter & P100 Particulate Filter
(F)AG Full Facepiece with Acid Gas (F)HG Full Facepiece Mercury Vapor or Chlorine Gas
(F)AG/N95 Full Facepiece with Acid Gas & N95 (F)HG/N95 Full Facepiece Mercury Vapor or Chlorine Gas
Particulate Filter & N95 Particulate Filter
(F)AG/P95 Full Facepiece with Acid Gas & P95 (F)HG/P95 Full Facepiece Mercury Vapor or Chlorine Gas
Particulate Filter & P95 Particulate Filter
(F)AG/P100 Full Facepiece with Acid Gas & P100 (F)HG/P100 Full Facepiece Mercury Vapor or Chlorine Gas
Particulate Filter & P100 Particulate Filter
OV/AG Half Facepiece Organic Vapor/Acid Gas MG Half Facepiece Multi-Gas/Vapor
OV/AG/N95 Half Facepiece Organic Vapor/Acid Gas & N95 MG/N95 Half Facepiece Multi-Gas/Vapor & N95
Particulate Filter Particulate Filter
OV/AG/P95 Half Facepiece Organic Vapor/Acid Gas & P95 MG/P95 Half Facepiece Multi-Gas/Vapor & P95
Particulate Filter Particulate Filter
OV/AG/P100 Half Facepiece Organic Vapor/Acid Gas & P100 MG/P100 Half Facepiece Multi-Gas/Vapor & P100
Particulate Filter Particulate Filter
(F)OV/AG Full Facepiece with Organic Vapor/Acid Gas (F)MG Full Facepiece with Multi-Gas/Vapor
(F)OV/AG/N95 Full Facepiece with Organic Vapor/Acid Gas & N95 (F)MG/N95 Full Facepiece with Multi-Gas/Vapor & N95
Particulate Filter Particulate Filter
(F)OV/AG/P95 Full Facepiece with Organic Vapor/Acid Gas & P95 (F)MG/P95 Full Facepiece with Multi-Gas/Vapor & P95
Particulate Filter Particulate Filter
(F)OV/AG/P100 Full Facepiece with Organic Vapor/Acid Gas & P100 (F)MG/P100 Full Facepiece with Multi-Gas/Vapor & P100
Particulate Filter Particulate Filter
AM Half Facepiece Ammonia/Methylamine OZ Ozone
AM/N95 Half Facepiece Ammonia/Methylamine & N95 (F)OZ Full Facepiece with Ozone
Particulate Filter SA Supplied Air Respirator with Half Facepiece
AM/P95 Half Facepiece Ammonia/Methylamine & P95 SA(F) Supplied Air Respirator with Full Facepiece,
Particulate Filter Hood or Helmet
AM/P100 Half Facepiece Ammonia/Methylamine & P100 SCBA Self-Contained Breathing Apparatus
Particulate Filter
Note to printer: This outside back cover is a fold-in. This top edge is the Spine Edge. 2-color

Data for this guide compiled

November 2005. Professional/Technical Development Courses
3M offers courses designed to fully acquaint the respiratory product user with the
Always refer to latest TLV Guide and OSHA standards applicable regulations. Courses qualify for Continuing Education Units as well as
for possible changes and rulings. various professional association credits.

Dalapon and Triclene are trademarks of Diamond Shamrock. For a schedule:

Dowenol and Dowtherm are trademarks of Dow Chemical. - Call 1-800-659-0151, ext. 275
Cellosolve, Dymel and Freon are registered trademarks of Dupont. - Fax on demand 1-800-646-1655, request document #2023
E-Mycin is a trademark of Upjohn Pharmaceuticals. - Internet www.3M.com/OccSafety
Genetron is a trademark of Honeywell.
Halon is a trademark of Allied Chemical.
Halowax is a trademark of Bakelite Corp./Union Carbide.
Airstream and Air-Mate are trademarks of 3M. For More Information
Windows 3.1, Windows 98, Windows NT, Windows XP, and • Technical Assistance 1-800-243-4630
Windows for Workgroups are registered trademarks of Microsoft. • Fax on Demand 1-800-646-1655
• Respiratory Protection Courses 1-800-659-0151, ext. 275
• Internet www.3M.com/OccSafety

3 To sign up to receive the updated 2007 Respirator

Occupational Health and
Selection Guide, visit www.3M.com/RespGuide.
Environmental Safety Division
3M Center, Building 235-2W-70
St. Paul, MN 55144-1000 © 3M 2006 70-0702-2012-7

Respirator Codes and Descriptions