100 Pcs Activated Carbon PM2.5 Mask Filter Paper 5 Layers Replacement PM 2.5 Face Filter Insert

-Activated Carbon Filter -Pack contains 100 Pcs replacement filters. -only for use with your Cloth Cover. -Replace at least 1 Active Carbon Filters a day, -Easy 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. -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 nches,compatible with most dust, easy to insert or replace the original