MSA OptimAir MM PAPR User manual

Operating Manual
OptimAir MM PAPR
Mask-Mounted Powered Air-Purifying Respirator
Order No.: 10090982/6
Print Spec: 10000005389 (F)
CR: 800000052214
MSAsafety.com

© MSA 2022. All rights reserved
WARNING!
Read this manual carefully before using or maintaining the device. The device will perform as designed only if it is used and
maintained in accordance with the manufacturer's instructions. Otherwise, it could fail to perform as designed, and persons
who rely on this device could sustain serious injury or death.
The warranties made by MSA with respect to the product are voided if the product is not installed and used in accordance with
the instructions in this manual. Please protect yourself and your employees by following the instructions.
Please read and observe the WARNINGS and CAUTIONS inside. For additional information relative to use or repair, call
1-800-MSA-2222 during regular working hours.
MSA is a registered trademark of MSA Technology, LLC in the US, Europe and other Countries. For all other trademarks visit
https://us.msasafety.com/Trademarks.
1000 Cranberry Woods Drive
Cranberry Township, PA 16066
USA
Phone 1-800-MSA-2222
For your local MSA contacts, please go to our website www.MSAsafety.com

Contents
1 Introduction 4
1.1 Cautions and Limitations 4
1.2 Important Notice for Respiratory Protection Program Administrators 4
1.3 Limitations 5
1.4 Respirator Use Limitations 5
2 Description 7
2.1 Principle of Operation 7
2.2 Respirator Fit Test 7
2.3 Exposure Limits 8
3 Charging the Battery Pack 9
3.1 Unpacking and Inspection 9
3.2 Charging the Battery Pack 9
4 Respirator Assembly 11
4.1 Assembling the Mask-Mounted Respirator 11
5 Using the Respirator 13
5.1 Donning the Support Belt Battery Pack 13
5.2 Donning the Facepiece 14
5.3 Donning the Respirator with G1 Facepiece 16
5.4 Testing the Negative Pressure Seal (Face-to-Facepiece Seal) 17
5.5 Decontamination 18
5.6 Removing the Respirator 18
6 Maintaining the Respirator 19
6.1 Filter and Battery Pack 19
6.2 Cleaning and Disinfecting 21
6.3 Respirator Storage 22
7 Test Method for the OptimAir MM PAPR 22
7.1 Testing the Battery Pack 23
7.2 Testing the Motor Blower 24
8 Accessories 27
8.1 Installing the Nosecup for Ultravue / Ultra Elite Facepiece 27
8.2 Installing Nosecup for Advantage 3000 / 4000 Masks Only 27
8.3 Spectacle Kit 27
8.4 Adjusting the Spectacles 27
8.5 Installing the G1 Spectacle Kit 27
8.6 Parts 29
9 Exploded Views and Parts Lists 30
9.1 G1 Facepiece 30
9.2 Ultravue Demand Facepiece 32
9.3 Ultra Elite Demand Facepiece 33
9.4 Advantage 3000 Model 3100 Single Port 35
9.5 Advantage 4000 37
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1 Introduction
1.1 Cautions and Limitations
A — Not for use in atmospheres containing less than 19.5 percent oxygen.
B — Not for use in atmospheres immediately dangerous to life or health.
C — Do not exceed maximum use concentrations established by regulatory standards.
F — Do not use powered air-purifying respirators if airflow is less than four cfm (115 lpm) for tight fitting facepieces or six cfm
(170 lpm) for hoods and / or helmets.
I — Contains electrical parts that may cause an ignition in flammable or explosive atmospheres.
J — Failure to properly use and maintain this product could result in injury or death.
L — Follow the manufacturer's User's Instructions for changing cartridges, canisters and / or filters.
M — All approved respirators shall be selected, fitted, used, and maintained in accordance with MSHA, OSHA, and other
applicable regulations.
N — Never substitute, modify, add, or omit parts. Use only exact replacement parts in the configuration as specified by the
manufacturer.
O — Refer to User's Instructions, and / or maintenance manuals for information on use and maintenance of these respirators.
P — NIOSH does not evaluate respirators for use as surgical masks.
FF —
Respirators are to be fit tested prior to use with the heaviest cartridges, canisters, filters and/or accessories intended to
be used. Fit testing should also be conducted while wearing all personal protective equipment intended to be used. See
User's Instructions for fit test requirements.
1.2 Important Notice for Respiratory Protection Program Administrators
(1) Before occupational use of this respirator, a written respiratory protection program must be implemented meeting all the
local government requirements. In the United States, employees must comply with OSHA 29 CFR 1910.134, which
includes medical evaluation, training, and fit testing.
(2) An adequate respirator protection program must include knowledge of hazards, hazard assessment, selection of proper
respiratory protective equipment, instruction and training in the use of equipment, inspection and maintenance of
equipment, and medical surveillance. (See OSHA regulations, Title 29 CFR, Part 1910.134, Sub-part I par. 1910.134 (b)
(1)).
(3) This respirator will perform as designed only if it is used and maintained strictly according to the manufacturer’s
instructions, labels, and limitations. The Program Administrator and the users must read and understand these
instructions before trying to use or service this product. We encourage our customers to write or call for information on
this product before using it.
(4) This respirator shall not be worn in an atmosphere which is immediately dangerous to life or health (from which the wearer
cannot escape without the aid of a respirator). Under no circumstances should the respirator be used as an underwater
device.
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(5) Users must wear suitable protective clothing and precautions must be taken so that the respirator is not worn in
atmospheres that may be harmful to the device.
(6) Do not alter, modify, or substitute any components without the approval of the manufacturer. Such alterations will void
the NIOSH approval.
(7) Inspect the respirator regularly and maintain it according to the manufacturer’s instructions. Repairs must only be made
by properly trained personnel.
1.3 Limitations
The OptimAir MM PAPR with OptiFilter Type HE filter cartridge, or Type HE particulate filter, are approved as high efficiency
particulate air filter for powered air-purifying respirators. Filter does not remove gases or vapors from the air supply. No filter is
designed for all substances, Therefore, you must know what the contaminant is, as well as its concentration, before selecting
a respirator. This respirator does not supply oxygen. Do not use this respirator unless the surrounding air contains a minimum
of 19.5 percent oxygen. The respirator may be used at temperatures between 0°F and 120°F, and may be worn under flame-
retardant garments. If used below 40°F, a fullycharged battery may not operate the motor-blower for an entire shift.
1.4 Respirator Use Limitations
The wearer must comply with the following MSA respirator use limitations:
(1) Maximum Use Concentration – Do not exceed any of the following:
– 1000 times the exposure limit for the contaminants present.
– Immediately dangerous to life or health (IDLH) concentration for any contaminant present.
(2) The limitations outlined in the applicable NIOSH approval.
(3) Any applicable limitation contained in a standard established by a regulatory agency (such as OSHA) with jurisdiction
over the wearer.
(4) NIOSH allows this respirator to be used for protection against a mixture of particulates that are present simultaneously or
alternately against one particulate then another (using the same filter) if the mixture meets the following conditions:
– The filter must be approved for all particulate.
– Particulates (dusts, mists, fumes, asbestos, radionuclides) can be mixed with any other particulate for which the
filter is approved.
– Contaminants present simultaneously must be below IDLH levels for the specific contaminants. If any one
contaminant in the mixture exceeds the IDLH concentration then the entire mixture must be treated as IDLH and the
respirator cannot be used (except for escape).
WARNING!
• This device does NOT supply oxygen. Use only in adequately ventilated areas containing at least 19.5 percent oxygen.
• This respirator must be used in conjunction with proper particulate cartridges for protection against specific contaminants.
• This respirator is not approved for use with chemical or combination cartridges. Use only with the particulate cartridges
listed in the approvals matrix.
• Do not use when concentrations of contaminants are unknown or immediately dangerous to life or health (IDLH). (See the
respirator NIOSH approval label P/N 818105 to determine if this device can be used for escape from those concentrations.)
• Do not use when appropriate exposure limit (OSHA, PEL, NIOSH REL, ACGIH TLV, etc.) is not known or when it is below
the odor threshold or any other established warning level for the contaminant.
• Leave area immediately if:
– Breathing becomes difficult.
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– Dizziness or other distress occurs.
– You taste or smell contaminant.
– You experience eye, nose or throat irritation.
• Use strictly in accordance with instructions, labels and limitations pertaining to this device.
• This respirator may not provide a satisfactory seal with certain facial characteristics, such a beards or large sideburns, that
prevent direct contact between the skin and the sealing surface of the facepiece. Do not use this respirator if such
conditions exist.
• Individuals who wear prescription glasses must use the spectacle kit to guarantee a correct fit. Ordinary prescription
glasses cannot be worn under the facepiece. See 8.3 Spectacle Kit.
• Never alter or modify this device.
• This respirator is for use by trained and qualified personnel only.
Failure to follow these warnings can result in serious personal injury or death.
WARNING!
• This respirator provides LIMITED protection. A respirator paired with an appropriate particulate filter may help reduce
exposure to airborne biological agents, including avian (bird) flu virus, other types of influenza, SARS, or other bacterial or
viral biological agents, but WILL NOT ELIMINATE the risk of exposure, infection, illness, or death.
• This respirator is certified by NIOSH to comply with the requirements specified for the designated filter efficiency level;
however, the government has NOT established a safe level of exposure to biological agents. Therefore, the respirator may
NOT prevent transmission of influenza virus.
• Refer to the Centers for Disease Control and Prevention (CDC) at www.cdc.gov for guidance on the use of respirators to
help decrease exposure to viral pathogens or other airborne biological agents in community, home, and occupational
settings. The CDC recommends fit testing, medical evaluations, and training for optimal effectiveness when a respirator is
used in a non-occupational setting. Neglecting these preparatory measures may cause an unsafe condition. Respirators
used in an occupational setting MUST be used in accordance with a complete respiratory protection program as required by
OSHA, which includes proper selection, training, fit-testing, and fit-checking. Detailed information on a respiratory
protection program is available by contacting OSHA or visiting www.osha.gov.
• Do NOT remove respirator in contaminated areas. The outer surface of the respirator MUST be treated as if it is
contaminated at all times. A respirator will NOT prevent one from exposure to the flu or other airborne biological agents in
other ways such as by touching the mouth, nose, or eyes with contaminated hands or objects. Biological agents, such as
the flu virus, can be transmitted when infected individuals cough or sneeze and spread virus particles through the air to
exposed surfaces which are touched. Tight-fitting safety goggles, or a full-facepiece respirator, may further help prevent
transmission of viral pathogens or other airborne biological agents.
• The CDC recommends frequent hand washing and wearing gloves to help prevent transmission of disease due to exposure
to surfaces where contaminants may be present, and also immediately following removal of the respirator.
• Do not share filter cartridges between users.
• This respirator is NOT for use by
a) children or
b) people with a medical condition that may be adversely affected by using it.
• This respirator is equipped with an exhalation valve. Exhaled air from the user passes, unfiltered, through the exhalation
valve and into the surrounding environment. Do not use where a sterile field is required.
• Test for Tightness before use. If a leak is detected, refer to 5.4 Testing the Negative Pressure Seal (Face-to-Facepiece
Seal) in this manual for further instructions.
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• An adequate respiratory protection program must include knowledge of hazards, hazard assessment, selection of proper
respiratory protective equipment, instruction and training in the use of equipment, inspection and maintenance of
equipment, and medical surveillance.
• Do not alter, modify, or substitute any components.
• Inspect the respirator regularly and maintain it according to the instructions. Repairs must only be made by personnel
authorized by MSA.
• Verify the contaminant(s) in the environment before entering. Always check that the filter cartridges are appropriate for use
in the environment. A filter cartridge which is not designed for the contaminant present may not provide protection.
• DO NOT use the filter cartridges if the bag is opened, damaged, or missing. Filter cartridges must be in their original
packaging prior to use in a contaminated environment.
• DO NOT replace canister/cartridge(s) in a contaminated area. Be sure to follow applicable decontamination procedures.
Failure to follow this warning can cause inhalation of contaminated air, resulting in serious respiratory injury or death.
• DO NOT remove respirator until respirator and protective clothing are decontaminated; otherwise, exposure to
contaminants may result. Follow decontamination and disposal procedures established by appropriate authorities
Failure to follow these warnings can result in serious personal injury or death.
2 Description
The OptimAir Mask-Mounted Powered Air-Purifying Respirator (PAPR) from MSA is certified by the National Institute for
Occupational Safety and Health (NIOSH) as an air-purifying device designed only for use in atmospheres NOT immediately
dangerous to life or health (IDLH).
The OptimAir MM PAPR is used with the facepiece, which is available in small, medium or large sizes. If needed, Advantage®
4100, Ultravue® and Ultra Elite® Facepieces may be equipped with an integral welder’s lens or clip-on welder’s adapter (only
used with Ultravue Facepieces). See Accessories/ Spare Parts.
The motor-blower and replaceable high-efficiency filter are worn as an assembly attached to the facepiece. The rechargeable
battery pack is worn on the support belt. A power cable connects the belt-mounted battery pack to the motor-blower on the
facepiece. A battery charger is supplied with the respirator.
2.1 Principle of Operation
The motor-blower draws surrounding air through the filter which captures the particulate contaminant. Filtered air passes
through to the facepiece and creates higher pressure than the surrounding atmosphere. Therefore, if a leak occurs, air will flow
from inside the facepiece to the outside air. This is referred to as positive pressure. Air flow also provides wearer comfort. The
rechargeable NiMH battery pack supplies 4.8 volts (nominal) to the motor-blower. The battery pack is replaceable. A fully
charged battery is designed to operate in excess of 8 hours. Then the battery pack can be re-charged in 3 hours using the
standard charger.
The replaceable filter cartridge which traps the particulate contaminant is at least 99.97% efficient against 0.3 micron DOP
aerosol.
2.2 Respirator Fit Test
WARNING!
The user must perform a respirator fit test and follow all warnings and limitations specified.
Failure to follow this warning can result in serious personal injury or death.
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A qualitative or quantitative respirator fit test must be carried out for each wearer of this respirator to determine the amount of
protection it will provide. Respirator fit tests are explained fully in ASTM F3387 - Latest edition, Standard Practices for
Respiratory Protection, ASTM International https://www.astm.org/Standard/standards-and-publications.html (ASTM F3387
formerly known as ANSI Z88.2).
Quantitative Test — If a quantitative fit test is used, a fit factor that is at least 500 shall be obtained before that respirator is
assigned to an individual.
Qualitative Test — If a qualitative fit test is used, only validated protocols are acceptable. The individual must pass a test
designed to assess a fit factor of at least 100.
Powered Air-Purifying Respirators must be qualitatively or quantitatively fit tested in a negative-pressure mode (with blower
off). This will cover use of the respirator in the powered air-purifying mode operation.
2.3 Exposure Limits
A listing of acceptable exposure limits from the following sources:
• American Conference of Governmental Industrial Hygienists (ACGIH)
• Occupational Safety and Health Administration (OSHA)
• National Institute for Occupational Safety and Health (NIOSH)
• American Industrial Hygiene Association (AIHA)
Contact MSA at 1-800-MSA-2222 for information.
2.3.1 Exposure Limits for Mixtures
The American Conference of Governmental Industrial Hygienists (ACGIH) publishes the following information to determine the
TLV of a mixture. First determine the total concentration of the chemical mixture (CMixture) from the individual contaminant
concentrations (C1, C2, C3,…) using the following formula:
CMixture = C1 + C2 + C3 + …
The TLV of the mixture is found by using the following formula where T1, T2, T3,… are the individual contaminant TLVs and
C1, C2, C3,… are the individual contaminant concentrations:
Only use these equations if the contaminants present are actually mixed. Some substances do not mix and may be present
separately, for example, in pockets or at different levels. In that case, the lowest TLV of the substances present must be used
to determine the appropriate respirator category for protection against all contaminants present.
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3 Charging the Battery Pack
3.1 Unpacking and Inspection
The OptimAir Mask-Mounted PAPR kit consists of the following components:
• motor-blower
• battery pack
• support belt
• charger
• cable
• facepiece
• storage plug
• filter
WARNING!
• Thoroughly inspect all components of the respirator before the device is used. Read and observe all NIOSH approval
limitations as they apply to using the OptimAir MM PAPR.
• Do not use the storage plug while working in a contaminated atmosphere. Doing so will compromise respirator performance
and void NIOSH approval. Use plug only during decontamination and storage to help prevent debris from coming out of
cartridge.
• Do not drop the OptimAir MM PAPR. The battery pack can be damaged by impact. The case can be cracked and could
allow water into the pack. If the unit is dropped, inspect the case for cracks. If the motor blower no longer operates from the
compromised battery pack, the battery pack must be replaced.
• The motor-blower housing can be damaged by impact. The blower impeller can be loosened or the motor shaft can be bent.
If the unit is dropped, check the case for cracks. Listen closely to the sound of the motor. If the impeller binds or rattles, or if
air output is reduced, the entire motor-blower must be replaced.
Failure to follow these warnings can result in serious personal injury or death.
3.2 Charging the Battery Pack
The battery pack must be fully charged before the respirator is first used. Use only the P/N 10090981 battery charger from
MSA. Other chargers can damage the battery due to internal wiring differences or incorrect charging rates.
The battery pack should be stored at a temperature range of 50°F to 85°F. If the battery pack has been stored in a “fully
charged” condition for more than one week, the battery pack should be charged until a full charge is indicated.
WARNING!
Do not charge the battery pack where there are explosive concentrations of combustible gases, vapors, or mists. An explosion
or fire can result. Replace the charger if the cord is damaged or worn, or if the case is cracked or distorted. Do not use a
damaged charger. Doing so can result in serious personal injury or death, or create a fire hazard.
Failure to follow this warning can result in serious personal injury or death.
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(1) Line up the key in the charger cable plug with the slot in the female connector on the
battery pack.
(2) Push the plug into the female connector and turn the ring to secure it.
(3) Plug the charger into a 115-120 V, 50, 60 Hz (standard AC) outlet. The charger can be used internationally with the
appropriate adapter.
CAUTION!
Voltages lower than 115V are not recommended. Voltages greater than 120V will damage the battery charger and battery pack.
Failure to follow this caution can result in battery or equipment damage.
(4) Charge the battery pack until a full charge is indicated.
LEDSignaling
Condition LED Indication
No Battery Yellow
Charge Initialization Yellow
Rapid Charge Orange
Charge Top-Off Green/Yellow
Trickle Charge Green
Charge Error Orange/Green
The charger uses one LED. When the battery is charging, the LED will be orange. When the LED is green the battery is fully
charged. The battery can stay connected to the charger until it is needed. If the LED is yellow, the battery is either not
connected or not at the proper temperature. The charging will start when the battery pack reaches the optimum charging
temperature of 35°F to 100°F. If the LED is orange/green , there is a failure. Disconnect battery pack, and unplug charger. Plug
charger back into outlet and reconnect battery pack to reset charger. If the LED is orange/green during any part of the charge,
after it has been reset, remove the battery from service.
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4 Respirator Assembly
4.1 Assembling the Mask-Mounted Respirator
If necessary, remove the coupling nut from the facepiece inhalation housing. The coupling nut may be used if the facepiece is
used on MSA respirators.
(1) Check that the inhalation check valve and spider gasket are in the facepiece
inhalation housing.
NOTE: The gasket is needed so that the facepiece and motor-blower will seal.
NOTE: The Ultavue Facepiece is shown.
a) If using the Ultravue Facepiece, see step 4.
b) If using the G1 Facepiece, attach the APR adapter by following these steps:
(2) Push the APR adapter inward until you hear a click when it engages correctly in
the facepiece. When the APR adapter is installed correctly and the facepiece is
held in the as-worn position, the MSA logo is aligned horizontally.
(3) Pull on the APR adapter to make sure that it is attached tightly to the facepiece.
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(4) Thread the motor-blower coupling nut into the facepiece until resistance is
encountered.
NOTE: Continue tightening the coupling nut an additional 60 degrees (the distance
of two notches on the coupling nut) into the facepiece.
(5) If attached, unthread the filter from the motor-blower assembly.
(6) Check that there is a gasket in the motor-blower housing.
NOTE: The gasket is necessary so that the filter and motor-blower will seal.
WARNING!
Do not use the respirator if the spider gasket in the facepiece inhalation housing or the gasket in the motor-blower housing is
missing or appears damaged.
Failure to follow this warning will permit the contaminant to be drawn into the respirator and inhaled, resulting in
serious respiratory injury or death.
(7) Thread the filter into the motor blower and hand-tighten.
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(8) Line up the key on the battery cable plug with the slot in the female connector on
motor-blower.
(9) Push the plug into female connector and turn to secure.
5 Using the Respirator
WARNING!
• Do not enter any atmosphere with this respirator unless you know that:
a) You have read, understood, and followed all instructions and warnings pertaining to the respirator.
b) The respirator and conditions meet the requirements outlined.
c) The cartridges are the proper type for the contaminant or contaminants present.
d) The amount of oxygen is sufficient to support life (that is, at least 19.5 percent oxygen by volume at sea level). Do not
use is oxygen concentration sufficient to support life is questionable.
e) Respirator has passed a tightness test. (See 5.4 Testing the Negative Pressure Seal (Face-to-Facepiece Seal)
f) Filters/Cartridges do not need to be replaced. Discard exhausted cartridges.
• Do not use the respirator in an atmosphere containing gas or vapor contaminants. Do not use the respirator if the air
contaminant is unknown or immediately dangerous to life or health (IDLH).
• The respirator filter is designed to provide limited protection from specific contaminants. See the filter label for specific
information.
• If you are working with a contaminant which can be absorbed by your skin, wear protective clothing that will not allow the
contaminant to contact your skin.
• When using the Advantage 4000 Facepiece, ensure the inhalation valve disc is laying flat against the adapter orifice.
Failure to follow this warning can result in serious personal injury or death.
5.1 Donning the Support Belt Battery Pack
(1) Thread the belt through the belt loops on the battery pack.
(2) Don the support belt.
NOTE: The battery pack may be worn on either side.
(3) Adjust the battery pack to a comfortable position.
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5.1.1 Connecting the Battery Pack
(1) Line up the key on battery cable plug with the slot in female connector on battery pack.
(2) Push the plug into female connector and turn to secure.
(3) Turn the switch located on the battery pack on.
(4) Attach the retaining clip to your shirt or belt to secure the power cable.
CAUTION!
Return to a safe atmosphere and discard the respirator immediately if the facepiece becomes discolored, crazed, blistered or
cracked, or if other signs of deterioration of the facepiece, motor-blower, filter or battery pack are observed.
Failure to follow this caution can result in minor or moderate injury.
NOTICE
You can breathe through the respirator with the motor-blower off, but breathing resistance may be noticed, as with a negative-
pressure respirator.
5.2 Donning the Facepiece
WARNING!
Make sure the top of the facepiece seal contacts the forehead directly. Make sure there is no hair between the facepiece seal
and your skin.
Failure to follow this warning can result in serious personal injury or death.
CAUTION!
Cover lenses are installed on the outside of the facepiece lens to protect the plastic surface. Do not use a cover lens in a high
heat environment. High heat can cause the cover lens to distort.
Failure to follow this caution can result in minor or moderate injury.
5.2.1 Adjustable Rubber Harness
(1) Adjust the facepiece head straps so the end tabs are at the buckles.
(2) Grip the head-straps between the thumb and fingers with both hands. Insert your chin into the chin cup.
(3) Pull the facepiece head-straps over your head. Smooth the straps flat against your head.
(4) To tighten the lower (neck) straps, pull the straps straight back not out.
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(5) Tighten the side (temple) straps.
(6) If needed, adjust the forehead strap to position the lens for best vision.
5.2.2 Donning the Advantage 3000 Model 3100 Single Port or Advantage 4000 Model 4100 Single Port with
Rubber Harness
WARNING!
When using the Advantage 4000 Facepiece, ensure the inhalation valve disc is laying flat
against the adapter orifice.
Failure to follow this warning can result in serious personal injury or death.
(1) Loosen the two bottom harness straps. Grip the straps by inserting thumbs through the straps. Insert chin well into lower
part of facepiece and pull harness back over head.
(2) Push the back of the harness downward toward the neck until it is centered at the back of the head.
(3) If necessary hold the mask component housing with one hand and position the harness with the other hand, until
obtaining a firm and comfortable fit against the face at all points.
(4) Tighten the two bottom straps so that the mask is snug against face. The top two harness straps should be flat against
the top of the head.
(5) If the mask does not feel snug against the face, remove the mask and adjust the length of the two top straps. To adjust
the top straps:
a) Remove the strap from the fastener button, by pulling the loose end of the strap away from the fastener button.
b) Move the slide away from the lens ring to allow the strap to slide through the lens ring connection. Adjust the length of
the strap. Pull the straps to the next hole. Secure the strap in position by pulling the strap onto the button.
c) Smooth the straps so that they are flat. Move the slide so that it is located at the lens ring connection.
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5.2.3 Donning the Respirator with Plastic Advantage 3000 (Model 3100 Single Port) Harness
NOTE: There are two recommended donning procedures.
Donning Procedure A
(1) Completely loosen the two bottom straps. Spread the straps of the head harness with both hands and place chin into the
mask. Pull harness over head all the way, until plastic cradle lies flat on back of head.
(2) Tighten neck straps evenly so that the mask is snug against the face.
(3) If necessary, adjust the mask and tighten harness by pulling loop on the back of harness.
Donning Procedure B
(1) Completely loosen the two bottom straps, insert fingers and hold the loop on the back of the harness.
(2) Place chin into the mask.
(3) Pull the harness over head with loop, pull harness down to the back of the head until plastic cradle lies flat on back of
head.
(4) Tighten neck straps evenly so that the mask is snug against your face.
5.3 Donning the Respirator with G1 Facepiece
WARNING!
Make sure the top of the facepiece seal contacts the forehead directly. Make sure there is no hair between the facepiece seal
and your skin.
Failure to follow this warning can result in serious personal injury or death.
The neck strap in front of the chest or the clip on the shoulder strap is used to carry the facepiece. To protect against dirt and
debris, make sure the facepiece opening is towards the user's body.
(1) Spread the harness with both hands.
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(2) Put the chin into the chin cup.
(3) Pull the head straps over your head.
(4) Make sure the harness is in the correct position and is not twisted.
(5) Adjust the facepiece.
(6) Tighten the straps firmly and evenly.
5.4 Testing the Negative Pressure Seal (Face-to-Facepiece Seal)
To test facepieces for leakage using a negative pressure method:
(1) Block the filter opening.
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(2) Inhale so that the facepiece collapses against your face. Hold your breath for 10 seconds. The facepiece should remain
collapsed.
(3) If the facepiece does not remain collapsed, readjust the headstraps and repeat steps 1 and 2.
NOTE: If you cannot get a seal by adjusting the headstraps, check the facepiece for leaks. See 6 Maintaining the Respirator.
Locate the problem and correct it before using the respirator.
Leave the area immediately if any of the following symptoms occur
• breathing becomes difficult
• dizziness or other distress occurs
• you taste or smell the contaminant
• you experience eye, nose or throat irritation
WARNING!
If you bump or impact the cartridges, leave area immediately and check the security of the cartridge. Perform an Air Tightness
Test before re-entry.
Failure to follow this warning can result in serious personal injury or death.
WARNING!
This device may not seal properly with your face if you have a mustache, beard, gross sideburns or other physical
characteristics that interfere with the face-to-facepiece seal [see ASTM F3387 - Latest edition , Standard Practices for
Respiratory Protection, ASTM International https://www.astm.org/Standard/standards-and-publications.html (ASTM F3387
formerly known as ANSI Z88.2)]. If the facepiece does not seal against your face, non-respirable air can leak into the
facepiece, reducing or eliminating the protection. The face-to-facepiece seal must be tested before each use. DO NOT USE A
FACEPIECE THAT DOES NOT SEAL.
Failure to follow this warning can result in serious personal injury or death.
CAUTION!
• Return to a safe atmosphere and discard the respirator immediately if the facepiece becomes discolored, crazed, blistered
or cracked, or if other signs of deterioration of the facepiece, motor-blower, filter or battery pack are observed.
• You can breathe through the respirator with the motor-blower off, but breathing resistance may be noticed, as with a
negative-pressure respirator.
Failure to follow these cautions can result in minor or moderate injury.
5.5 Decontamination
The OptimAir MM PAPR may be used in some applications which may require decontamination of personal and respiratory
equipment before the respirator may be removed. One such application is asbestos exposure decontamination.
Turn the motor-blower off before entering a decontamination shower. The OptimAir MM PAPR still provides respiratory
protection with the motor-blower off, because all air is still drawn through the filter. However, breathing resistance will be
greater than when the motor-blower is supplying air to the facepiece.
5.6 Removing the Respirator
(1) Return to fresh air and clean the outer surfaces of the respirator before removing the facepiece.
18 OptimAir® MM PAPR
5 Using the Respirator US

(2) Turn the power switch off.
(3) Place your fingertips behind the headstraps. Place your thumbs on the buckles.
(4) Pull the top of the buckles away from your head. Repeat as needed to loosen the headstraps.
(5) Grip the faceplate by the inhalation housing.
(6) Pull the facepiece out, then up over your head.
WARNING!
Do not pull the Ultravue Facepiece by the exhalation valve assembly. The facepiece rubber or the valve assembly can be
damaged. A damaged facepiece seal or exhalation valve assembly can result in leakage of contaminants into the facepiece,
resulting in serious personal injury or death.
Failure to follow this warning can result in serious personal injury or death.
(7) Remove the retaining clip from your shirt or belt.
(8) Remove the support belt. Be careful that you do not drop the battery pack.
6 Maintaining the Respirator
A maintenance program must be established. This program must include cleaning and sanitizing, component inspection and
replacement of worn or damaged parts. See the appropriate parts lists for correct replacement part numbers.
WARNING!
Only MSA repair technicians are to maintain the respirator. Use only genuine MSA parts. Do not make repairs or design
modifications other than as recommended by MSA or NIOSH certification will be voided.
Failure to follow this warning can result in serious personal injury or death.
6.1 Filter and Battery Pack
Service Times
Filter and battery pack (P/N 10090978) are designed to supply a minimum of four cubic feet per minute (cfm) of respirator air to
the facepiece for a shift. Actual service time may vary; however, air flow must not drop below 4 cfm. Factors which will affect
how long the filter can be used include the type and concentration of the contaminant. If breathing resistance is noticeable,
replace the filter.
OptimAir® MM PAPR 19
US 6 Maintaining the Respirator

WARNING!
Do not remove the filter in a contaminated area. Return to a safe atmosphere and remove any contaminant from the surface.
Do not remove the filter while the motor blower is running. With the filter removed, contamination from the surfaces of the
respirator can be drawn into the facepiece.
Failure to follow this warning can result in serious personal injury or death.
(1) Replacing the filter:
a) Turn the motor-blower off.
b) Clean the surface of the filter.
c) Turn the filter counter-clockwise (left) and unthread it from the motor-blower.
d) Ensure the gasket located in the air intake hole on the side of the motor-blower
is in place.
WARNING!
Do not install the filter or use the respirator if the gasket is missing or appears damaged.
Failure to follow this warning can cause the contaminant to be drawn into the respirator and can result in serious
respiratory injury or death.
e) Thread the new filter into the motor-blower air intake and hand-tighten against the gasket.
(2) Replacing the battery pack:
a) Remove the pack from the support belt.
b) Loosen the ring and pull the two connectors apart.
c) To re-install the battery pack, clip the battery pack on the support belt.
d) Line up the key on the battery cable plug with the slot in the female connector on the battery pack.
20 OptimAir® MM PAPR
6 Maintaining the Respirator US
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