Perform a negative pressure check
The final step for changing the location of the canister on a protective mask would be to reassemble the inlet valve assembly and the side voicemitter gasket back into their original positions. Make sure everything is aligned properly and securely tightened to maintain the mask's protective integrity.
negative pressure check
perform a negative pressure check
perform a negative pressure check.
outward
out ward
outward
outward
outward
outward
Outward
outward
outward