PM2.5 Active Carbon Filter, 5-Layer Filter Protection System Replaceable Filters for Dust/Pollution (30pcs)

Descripción

Item Package Quantity:30 Five-layer filtration system 1. First layer of spunbond cloth filters micron-level dust; 2. Second layer filters industrial pollutants, automobile exhaust, second-hand smoke, and pollen allergens. 3. Third layer of activated carbon cloth filters micron-level dust; 4. Fourth layer offers filter density for smaller material. 5. Fifth layer of spunbond cloth filters out all kinds of harmful substances. Specification： Material：Active carbon and non-woven melt-blown filter cloth Quantity：10-50pcs Sizes：12x 8 cm/ 4.7 x 3.1 inches