1.Product: 20PCS PM2.5 Activated Carbon Filter Replaceable Anti Haze Filter. Filters size: 12.5 x 8 cm/ 4.9 x 3.1 inches.
2. The first layer of spun-bond cloth filters micron-level dust; the Second layer filters industrial pollutants, automobile exhaust, second-hand smoke, and pollen allergens.
3. The third layer of activated carbon cloth filters micron-level dust; the Fourth layer offers filter density for smaller material.
4.The fifth layer of spun-bond cloth filters out all kinds of harmful substances.
5.Note: 1. Filter insert can not be cleaned and should be replaced every 1-2 weeks. 2. When a film or sticky sediment stains emerge, please replace the filter.
