1.The first layer of spunbond can filter micron-level dust
2.The second layer filters industrial pollutants, car exhaust, second-hand smoke and pollen allergens
3.The third layer of activated carbon cloth filters micron-level dust
4.The fourth layer filter smaller materials.
5.The fifth layer of spunbond filters out various harmful substances
10pcs/20pcs/60pcs/100pcs * mask gasket
1. The filter element cannot be cleaned and should be replaced every 1-2 weeks.
2. When film or sticky deposits appear, replace the filter.
Please be kindly noted,the listed product is produced and distributed abroad and subject to the laws of its country of origin