10Pcs PM2.5 Activated Carbon Filter 5 Layer Replacement Protective Filter for Mask

1.Product: 10PCS PM2.5 Activated Carbon Filter Replaceable Anti Haze Filter. Filters size: 12.5 x 8 cm/ 4.9 x 3.1 inches. 2.First layer of spunbond cloth filters micron-level dust; Second layer filters industrial pollutants, automobile exhaust, second-hand smoke, and pollen allergens. 3.Third layer of activated carbon cloth filters micron-level dust; Fourth layer offers filter density for smaller material. 4.Fifth layer of spunbond 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 film or sticky sediment stains emerge, plea

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