High-efficiency Filtration KN95 protection level, Layer by layer filtration to isolate pollution, high-efficiency dust resistant. Comfortable 3D breathable space, comfortable breathing. Adjustable Adjustable nose clip strip, no scraping & air leakage prevention, tightly and well fit the face. Skin-friendly Skin Friendly Antibacterial Non-woven Fabric, moisture-proof & nonirritating that face won't be tied by the mask. Application Can be used for dust-proof, electronic chemical, mining industry, food processing, daily travel. Type: KN95 Mask Model: KN95 3 x KN95 Protective Masks