KN95 protection masks are suitable for respiratory protection from harmful particles in the air. The protection mask is made with 5 layers and with a filter layer, offering reliable an effective barrier protection against fine airborne particles, dusts, mists, pollutants, etc. It can effectively filter non-oily particles in the air, up to more than 95%. It adheres and covers from your nose to the chin. The elastic head strap has a universal tight fit and the adjustable nose clip is for a perfect tight seal.