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technical manual operator instructions

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2.14 HELMET AND MASK INTERFACE.<br />

2.14.1 A trained technician will select the facepiece and nosecup size during the initial<br />

fitting of your facepiece. However, it is your responsibility to make sure your facepiece<br />

fits properly and fits while wearing your helmet system.<br />

2.14.2 In order to assure proper fit with the helmet system, the mask and helmet must<br />

be fitted together. During your mask/helmet fitting, the mask must be fitted first, then<br />

helmet is fitted while you wear the mask. You must ensure the mask has a good seal<br />

and is as comfortable as possible with your helmet.<br />

SECTION IV. OPERATION UNDER UNUSUAL CONDITIONS<br />

There are no special <strong>instructions</strong> for unusual conditions.<br />

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