Effectively filter PM2.5, dust, pollutants and droplets
[5 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. Bringing you a safe breathing experience [Carbon Filter Uses]anti-odor, anti-dust, anti-gas, anti-PM2.5 Allergies,Smoke,Pollution,Ash, Pollen [Carbon Filter Material] PP anti-sticking cloth + meltblown cloth + activated carbon cloth The masque filter provide comfortable protection for people.Suggest replace the fliters every week of uses for the best effect.