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reusable mask fitting instructions

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Place respirator under the chin and pull the cradle to the top of the head, so it rests on the crown.
Attach the bottom straps behind the neck.
Adjust both straps to obtain a secure and comfortable fit. Tighten by pulling on ends, or loosen by pushing out on buckle tab.
Seal check your respirator each time you enter a contaminated area.
Positive Pressure
Seal Check:
Cover the exhalation valve vents, and exhale gently to create a slight positive pressure.

If air leakage is detected, re-adjust the position of the facepiece and the tension of both headstraps, and repeat the seal check until leakage is eliminated.

Negative Pressure
Seal Check:
Cover both cartridges, and gently inhale and hold your breath. The facepiece should slightly collapse.

If air leakage is detected, re-adjust the position of the facepiece, and the tension of both headstraps, and repeat the seal check until leakage is eliminated.