Product Name: Pm2.5 Premium Replaceable Anti Haze Filters Protective 5 Layers Filter Replacements Activated Carbon Filter Model NO.: F-02 Activated Carbon Filter Type: Compact Type: Activated Carbon Filter Application: Industry, Food and Beverage Material: Activated Carbon Transport Package: 10PCS Per Polybag Specification: 12x8cm Origin: China HS Code: 3926909090 Product Description Product NamePM2.5 Premium Replaceable Anti Haze Filters Protective 5 Layers Filter Replacements Activated Carbon FilterSize18x12cmMaterial5 LayerPackingPolybagUsageput in face mask[Premium Filtration Performance]- Made of activated carbon, non-woven and melt-blown filter cloth, five-layer filter system effectively keep away from PM 2.5 and a range of airborne contaminants.[5 Layers Protection] - 1st layer of spunbond cloth filters micron-level dust. 2nd layer filters industrial pollutants, automobile exhaust, passive smoking, and pollen allergens. 3rd layer of active carbon cloth filters micron-level dust. 4th layer offers filter density for smaller material. 5th layer of spunbond cloth filters out all kinds of harmful substances.[Wide Applications]- Mouth filter anti airborne particles dust, seasonal allergies, smoke, pollution, ash, gardening pollen and so on. Ideal for all outdoor and indoor sports, such as running, jogging, biking, cycling, motorcycling, riding, hiking, skiing, snowboarding, paintball, lawn mowing, on public transport and other activities.[Activated Carbon Filter]- Multiple protection to isolate dust, multi-layer folding, good ventilation, double your protection against nasty substances, gases and odors with an additional filter inserted into the inside of your pollution .Filters are recommended to be replaced weekly for best results