DONNING
DONNING THE RESPIRATOR WITH PLASTIC ADVAN-
TAGE HARNESS
Instructions to Don the Mask
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 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 fin-
gers and hold the loop on the back of the harness.
2. Place chin into the mask.
3. Pull harness over head with the 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.
NEGATIVE PRESSURE SEAL TEST
The Negative Pressure Seal Test must be performed each
time the facepiece is donned. A good face-to-facepiece
seal must be verified before entering a hazardous area.
Perform the test as follows:
1. Ensure respirator is assembled properly.
2. Block off canis-
ter/cartridge(s) inlet
using the palm(s) of the
hand(s).
3. Inhale gently and hold breath for 10 seconds. If the
seal is good, the facepiece will collapse and remain
collapsed against face. Remove hand and breathe
normally.
4. If the facepiece did not remain collapsed during the
test, or any leakage is noticed, readjust straps and
perform Negative Pressure Seal Test again.
5. If this does not correct the leak, the mask will not pro-
vide protection. If the leakage is from the face seal, a
different size mask may provide a good seal. If other
than face seal leakage is detected, the condition must
be corrected before performing another test.
This device may not seal properly with your face if you
have a beard, gross sideburns or similar physical
characteristics (see ANSI Z88.2). An improper facial
seal may allow contaminants to leak into the face-
piece, reducing or eliminating respiratory protection.
Do not use this device if such conditions exist. The
negative pressure seal test must be conducted and
passed before each use. Never remove the facepiece
except in a safe, non-hazardous, non-toxic atmos-
phere. Failure to follow this warning can result in seri-
ous personal injury or death.
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