hope health KN95 Face Mask Respirator 3 packs of 5-Ply Protective-BLAIdeal for daily use at home, work, travel, or trips to the supermarket and gym, our KN95 face masks are genuine and made in accordance with industry standards. The 5 layer foldable mask has up to 95% filtration efficiency of non oily suspended particles of 0. 3 micron levels. Help prevent the spread of germs and protect yourself from airborne particles, pollen, and other allergens. Innovative active filtration barrier protects the respiratory system.