50 pieceshigh cotton, comfortable, with large quantity and excellent quality Prevention of particulate matter.packed separately in 50 pieces

It is up to Kn95 standard of USA, with high filtration efficiency and low resistance Three layer structure, surface layer of PP cloth,tasteless, no allergy, no irritation, good air permeability Choose elastic ribbon with good air permeability or rubber band without latex, which is suitable for various face types Adjustable nose clip and thickened sponge pad ensure close fit and comfortable wearing.Kn95 mask Comfortable and breathable