Use instructions for NIOSH-approved full facepieces
Replacing the exhalation valve disc
Remove the exhalation valve cover from the mask connector.
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Pull out the valve disc.
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The valve disc and seat must be clean and undamaged. Clean or
replace if necessary.
Moisten valve disc with water and refit.
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Refit the exhalation valve cover so that it engages.
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Replacing an inhalation valve disc
Pull the inhalation valve out by its edge.
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Remove the old valve disc and fit new disc.
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Stretch and press the inhalation valve disc around the stem until it
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makes even contact all around.
The valve disc must not be pinched. The disc must face inwards,
and the stems face outwards.
Transport
Transport the facepiece in a carrying box or mask bag.
Storage
Loosen the straps as far as possible.
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Wipe visor with anti-static cloth.
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Pack full facepiece in its bag or box.
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Store it in a dry, dust-free place where it is not deformed.
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Storage temperature: –15 °C to 35 °C (5 °F to 95 °F)
Keep out of direct sunlight and heat.
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