brand newly-released 100pcs air pollution face mask filter PM2.5

Activated Carbon PM2.5 Mask Filter Paper 5 Layers Replacement PM 2.5 Face Filter InsertMaterial: Activated Carbon FiltersEasy to use: just put it in the filter opening. 1. Filter insert can not be cleaned and should be replaced every day. 2. When film or sticky sediment stains emerge, please replace the filter.High-quality materials: Made of activated carbon and non-woven melt-blown filter cloth, 5 layers filter system effectively keep away from a range of airborne contaminants.Size Measurement: Carbon filters size measures approx 4.72 x 3.15 inches,compatible with most dust, easy to insert or replace the original. faultless for everyday use. premium materials and excellent craftsmanship ensure long-lasting durability.