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technical manual operator instructions

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SECTION III. OPERATION UNDER USUAL CONDITIONS<br />

2.4 DONNING YOUR MASK.<br />

WARNING<br />

Keep face clean-shaven. An unshaven face could<br />

cause a bad seal between face and facepiece.<br />

Soldiers should not wear hairstyles which possibly would<br />

interfere with the fit of the facepiece.<br />

Do not overtighten the headharness. Overtightening<br />

may cause the mask to leak and will make it more<br />

uncomfortable to wear.<br />

Excessive head movement may cause face seal to leak.<br />

a. Stop breathing, close eyes and remove headgear.<br />

b. Remove mask from carrier.<br />

2-39

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