technical manual operator instructions
technical manual operator instructions
technical manual operator instructions
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2.4 DONNING YOUR MASK (CONT).<br />
f. Block openings at bottom of outlet valve cover with palm of hand. Breathe out hard so<br />
that air escapes around edges of facepiece.<br />
g. Locate canister and cover the inlet port and breathe in. Facepiece should collapse<br />
against your face, and remain so while you hold your breath. If it does, facepiece is<br />
airtight. If facepiece does not collapse, your mask leaks, refer to para 3.2.<br />
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