technical manual operator instructions
technical manual operator instructions
technical manual operator instructions
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2.6 PUTTING YOUR MASK ON IN COLD WEATHER.<br />
WARNING<br />
In cold weather do not clear mask by exhaling a large<br />
volume of air. Moist air will frost eyelenses and impair<br />
vision.<br />
NOTE<br />
When wearing a mask in cold weather, you will probably<br />
feel increased resistance to your breathing.<br />
a. Perform the procedures for putting on your mask (para 2.5), keeping in mind the<br />
following points in cold weather:<br />
b. Exhale slowly and lightly. If you feel excessive resistance when exhaling, the outlet<br />
valve may be sticking.<br />
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