PM2.5 standard filter material with 5 layers • Military Grade Carbon Filter: PP anti-sticking carbon cloth • Filter Size:12 * 8 cm/4.72 * 3.15 • Efficient, active carbon, 2.5 rated filters will isolate up to 95-percent of Viral Particulates, Dust, Haze, Allergens
Product: 10 PCS PM2.5 Activated Carbon Replaceable Anti Haze Filter. Filters size: 12.5 x 8 cm/ 4.9 x 3.1 inches.
First layer of spun-bond cloth filters micron-level dust; Second layer filters industrial pollutants, automobile exhaust, second-hand smoke, and pollen allergens.
Third layer of activated carbon cloth filters micron-level dust; Fourth layer offers filter density for smaller material.
Fifth layer of spun bond-cloth filters out all kinds of harmful substances.
Note: Filter insert can not be cleaned and should be replaced every 1-2 weeks. When film or sticky sediment stains emerge, please replace the filter.