About The Product: 1.Material: PP anti-pasting cloth + meltblown cloth + activated carbon cloth 2. Applications: anti-odor, anti-dust, anti-gas, anti-bacterial, anti-PM2.5 Allergies, Smoke, Pollution, Ash, Pollen; 3. Scope: dust masks, self-use masks, beauty salons, pet shop masks, factory masks, food processing masks, environmental cleaning masks and other protective fabric can be placed. 4. The mask filter provide comfortable protection for people. suggest replacing the flashes of applications every week for the best effect. 5. Suit for PM2.5 type Face masksSuit for PM2.5 type Face masks. Filter function: 1. the first layer: spunbond cloth, filter the micron fabric 2. the second layer: to filter industrial pollutants, car exhaust, second hand smoke pollen allergies 3.the third layer: activated carbon cloth, benzene and a smaller function of filtering dust micron 4. the fourth layer: filter density, smaller material 5. the fifth layer: Spunbond cloth, filter all kinds of harmful substances; 6. Application: hospitals, out, site, tourism, colds, operating workshops, farms, haze weather, cold and hot Size: adult 12 * 8cm child 10x7cm Package: 10 PCS * Filter paper(not the mask)