MSA OptimAir 6A Instructions Manual Download Page 9

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DONNING

DONNING THE FACEPIECE STYLE PAPR

Note:

*Tyvek/Saranex/Tychem QC Hoods PAPRs are cov-

ered separately. See Tyvek/Saranex/Tychem QC Hoods
Assembly. Tyvek is trademark of the duPont Company.

DO NOT wear this respirator unless you have received
training in its use and have read and understood all of
the instructions.

DO NOT use this respirator in an area that has less
than 19.5 percent oxygen. The PAPR does not supply
oxygen. Do not use the respirator as an underwater
device. Do not use the respirator if the air contaminant
is unknown, immediately dangerous to life or health
(IDLH), or you cannot escape without respiratory
equipment. Do not use the respirator when the appro-
priate 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.

Respirator cartridges/canisters are designed to pro-
vide limited protection from specific contaminants.
See the filter, chemical, combination cartridge, or
CS/CN canister 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.

Failure to follow the above warnings can result in seri-
ous personal injury or death.

DONNING THE SUPPORT BELT

Don the support belt and adjust the motor-blower and
cartridges to a comfortable position.

The PAPR may be worn on either side. If a Comfo
Welder's Facepiece is used, the PAPR must be worn
toward the back or on the left side so that the breathing
tube will reach.

DONNING THE FACEPIECE

Note:

Check for a gasket in the facepiece coupling nut so

that it will seal with the breathing tube.

1. Connect the breathing tube to the facepiece and

hand-tighten.

2. Donning the half-mask facepiece with cradle headstraps:

a. Slip the cradle headstrap over the crown of your

head and rest the top of the facepiece on the bridge
of your nose.

b. Swing the bottom of the facepiece under your chin.
c. Pull the lower headstraps around your neck and

attach the clip to the d-ring.

d. Adjust the tension

slides for a comfort-
able fit.

e. Perform the Air-Tightness Test.

3. Donning the half-mask facepiece with elastic head-

straps:
a. Rest the top of the facepiece on the bridge of your

nose.

b. Swing the bottom of the facepiece under your chin.
c. Place the long headstraps over the crown of your

head. Attach the clip to the d-ring. Place the short
headstraps around your neck and attach the clip to
the d-ring.

d. Adjust the tension slides for a comfortable fit.
e. Perform the Air-Tightness Test.

4. Donning the full facepiece.

Cover lenses are installed on the outside of the 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 or moisture can get trapped
between the cover lens and the facepiece lens result-
ing in condensation, which can cause distorted vision.

ULTRAVUE AND ULTRA ELITE WITH ADJUSTABLE
RUBBER HARNESS

1. Adjust the facepiece headstraps so the end tabs are

at the buckles.

2. Grip the facepiece between the thumb and fingers

with both hands. Insert your chin into the chin cup.

3. Pull the facepiece headstraps over your head. Smooth

the straps flat against your head.

4. Support the facepiece by holding the speaking

diaphragm housing with one hand.

5. To tighten the lower (neck) straps, pull the straps

straight back, not out.

6. Tighten the side (temple) straps.
7. Adjust the forehead strap if needed to position the