Face Mask Filter is made of non-woven fabric, activated carbon and advanced filter cotton. The filter is 5 ply, with a
five-layer to protect. The filter size is approximately 4.5 x 3 inches.The filter design system effectively keeps away airborne contaminants. There are 10 pieces in a pack. Filter should not be cleaned, replace every 3-4 days.
This product has not yet been reviewed.