During the epidemic, what material is better for masks?

Kn95 is used during the epidemic.

KN95 is one of the levels specified in the Chinese standard GB2626-2006, and N95 is one of the levels specified in the American Niosh standard 42 CFR 84. The technical requirements and test methods of these two levels are basically the same, and the filtration efficiency can reach 95% under the corresponding standards. However, it should be noted that medical protective masks for medical personnel, especially those for direct contact with COVID-19, are one type of N95, but not all N95 masks are medical protective masks.

Precautions for wearing KN95 masks

Wash your hands before wearing the mask, or avoid touching the inner side of the mask with your hands during wearing the mask to reduce the possibility of the mask being contaminated, and clearly distinguish the Inside and outside, top and bottom; the printed side of the KN95 mask is the outside; one end of the metal strip/sponge strip is the top of the mask.

Do not squeeze the mask with your hands, including N95 masks, as this can only isolate the virus on the surface of the mask. If you squeeze the mask with your hands, the virus will soak through the mask with the droplets, and you may still be infected with the virus. of.

Be sure to keep the mask in good contact with your face. The simple test method is: after putting on the mask, exhale forcefully so that the air cannot leak from the edge of the mask.