KN95 Activated Carbon Dustproof Mask PM2.5 Mouth Nose Separated MasKN95 Anti-dust Masks Activated Carbon Filter 96% Patented Product
1 pcs = 1 X Mask (Include Mask filter×1) and 10 X Mask filte
Size: free size (122*102*52mm)
Feature: Mask with changeable filter
Weight of the mask: about 42g/pcs
Function: prevent spittle, sand, dust, haze, bacteria, etc
The filter is recommended to be replaced every 3 days.