iCanary 10PCS PM 2.5 Activated Carbon Filter 5 layers Insert - Replaceable Anti Haze, Dust, Haze, Allergens, Pollution, Ash, Protective Mouth Filter for Outdoor Activities - Filtre à charbon actif PM 2.5 5 couches - Available in 10, 20, 30 ✓ Packaging Selling Units - Single item Single package size: 24X18X2 cm Single gross weight: 80gm Package Type: Polybag Packaging FEATURES: ✓ 1.Five layers of PM2.5 Carbon filtering,Made of activated carbon and non-woven melt-blown filter cloth, effectively keep away from PM2.5 and a range of airborne contaminants. ✓ 2.Carbon filters size measures approx. 12 x 8 cm , compatible with most dust cover, easy to insert or replace the original one. ✓ 3. Mouth cover filter anti airborne particles dust, seasonal allergies, pollution, ash, gardening pollen and so on, suitable for most occasions. ? How To Use the PM 2.5 Activated Carbon Filter ✓ Stretch and unfold your Non- Surgical Mask ✓ Insert the PM 2.5 Activated Carbon Filter into the interlayer ✓ Put the Mask against the chin, put the elastic band behind the back of the neck and ears. ✓ Place the finger in the middle of the clamp and press it from the middle of the two sides of the beam and directly press it into the shape of the bridge of the nose ? NOTE: It is recommended to replace the Plug-In Filter, Dust Filter, Anti Pollution Activated Carbon Filter (PM 2.5 Activated Carbon Filter) ONCE A WEEK ! Hurry , Protect your most valuable health NOW by using our product.? Mouth cover filter dual filtering. Filter is replaceable and suit for most mouth cover which with filter slot. The cumulative effective use time of a single piece is 24 hours. ? Used in combination with a mouth cover to protect against dust, vehicle emissions, germs, allergies, pollution, ash, pollen and smog. Ideal for crowded places, daily outing, pollen season, cycling, running, biking or outdoor activities. ? Advanced Filtration Tecnology: The filter element of this mask has 5 layers of protection, bringing you a safe breathing experience. (50PCS in total). Wearing a mask with additional filter reduces the risk of breathing in harmful particles. Anti Pollution Activated Carbon Filter. ? High-quality Materials: Made of activated carbon and non-woven melt-blown filter cloth, 5 layers filter system, Dust Filter - effectively keep away from PM2.5 and a range of airborne contaminants. ? Activated carbon -Material: PP Anti-Sticking cloth Meltblown Cloth Activated Carbon Filter.