SupplyAID’s KN95 5-ply foldable mask is suitable for adults’ daily travel protection. The KN95 mask is not to be used as a replacement for gas masks or as a medical mask. The mask cannot generate oxygen and should not be used in hypoxic environments. When used properly, the mask provides approximately 95% filter efficiency and effectively protects respiratory health. Use the KN95 mask to protect against PM2.5, dust, pollen, microorganisms, and air pollution. Use the mask within 3 years of manufacture and should be stored in dry and ventilated location 23ºF – 122ºF (-5ºC – 50ºC, relative humidity <80%). Contains 5 face masks.