Folded Mask Dimensions: 10.7 cm x 16 cm / 4.2 in x 6.3 in. Non-medical. 5 layers of protection. KN95 GB2626-2006. Duration of use for your mask. Cumulative use of no more than 8 hours of continuous or intermittent use. For non-medical personnel this mask is recommended for no more than 8 hours continuous use or no more than 5 times in short duration before changing your mask, KN95 respirator masks should be replaced when the following conditions occur: A significant increase in breathing resistance. The surface of the mask is damaged and/or the mask cannot adapt to dace property. The mask is contaminated such as blood stains and droplets on the outside of the mask or there is an odor inside the mask. Secondary exposures can occur from mask reuse if respirators are shared among users and at least one of the users is infectious (symptomatic or asymptomatic). It is always suggested masks only be used by a single wearer and not shared. One size. www.al-shileds.com. Shop with us at www.a...

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Al Shields Adult Size 3 Pack KN95 Respirator White Face Mask 3 ea

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