31
During Use
G1 Powered Air-Purifying Respirator (PAPR)
US
7.2
Donning in Cold Weather
Users must know how to don the respirator in cold weather before using this respirator in cold weather.
Use the instructions in Section 7.1 "Donning in Normal Weather" to don the respirator. For donning in
cold weather, you MUST hold your breath (Section 7.1, Step 8) before you start to put the facepiece
in position in Step 9 until after you tighten the harness straps in Step 15. If you do not, the facepiece
can fog immediately.
To prevent the facepiece lens from fogging in cold weather, keep facial perspiration to a minimum
before donning the respirator.
7.3
Testing the Negative Pressure Seal
WARNING!
If the facepiece does not hold a negative pressure seal, remove the respirator from service and
return it to an MSA trained repair technician.
Do a negative pressure seal test before each use and before going into a toxic atmosphere.
Failure to obey these warnings can result in serious injury or death.
To make sure that the face-to-facepiece tightness is correct, do a negative pressure seal test before
each use.
8
During Use
WARNING!
Do NOT use the respirator if any of the following conditions occur:
- The negative pressure seal test is unsuccessful.
- The respirator is damaged.
- Correct servicing/maintenance has not been done.
- Genuine MSA replacement parts have not been used.
Go out of a contaminated area immediately if:
- Breathing becomes difficult.
- Dizziness or other distress occurs.
- You taste or smell a contaminant.
- You feel irritation of the nose or throat.
(1) Use the palms of your hand to seal the inlet ports of
the air filtration cartridges/canisters.
(2) Inhale and hold your breath for 10 seconds. Make
sure that the facepiece stays collapsed on your face.
(3) Exhale. Make sure that the exhalation valve opens
and the pressure inside the facepiece is released.
(4) If necessary, retighten the straps.
