10/100 PCS Activated Carbon Filter, Mifidy 5 Layers PM2.5 Replaceable Anti Haze Details: PACKAGE INCLUDE: Each piece is individually packaged. 10//20/30/50/80/100 PCS Gasket/ Disposable face mouth filter Pad. FIVE LAYERS FILTER MATERIAL: The filter consists by non-stick non-woven fabric + silver ion isolation layer + activated carbon isolation layer + meltblown layer + non-stick non-woven fabric. ABOUT THE FIVE LAYERS: The first layer of spunbond filters out micron-sized dust; the second layer filters industrial pollutants, car exhaust, second-hand smoke and pollen allergens. The third layer of activated carbon cloth filters out micron-sized dust; the fourth layer provides filter density for smaller materials. The fifth layer of spunbond filters out various harmful substances. CARON FILTER USES : Anti-odor, anti-dust, anti-gas, anti-PM 2.5 allergies, smoke, pollution, ash, pollen. Prevent your mouth and face from Dust, Haze, Allergies,Pollution,Ash, Pollen,Gardening,Crafts. UNIQUE DESIGN: 3D stereoscopic structure, comfortably stick on your face. And double gummed to prevent the shift. We are committed to providing you with a comfortable experience.