Made of activated carbon and non-woven melt-blown filter cloth, this filter blocks particles down to PM 2.5 and a wide range of many airborne contaminants.
1st layer of spunbond cloth filters micron-level dust. 2nd layer filters industrial pollutants, automobile exhaust, 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.
The filters size measures approx. 12x8 cm/ 4.72 x 3.15 inches, and is compatible with most masks, easy to insert and replace the original.
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 cover.
This filter anti airborne particles dust, seasonal allergies, 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.