Adult PM 2.5 5 Layer Face Mask Replacement Filter

Adult size face mask PM 2.5 filters. Replacement 5-ply anti pollution pm 2.5 air purifying activated carbon filter 2, 5 or 10 Pack of replacement Filters for use in Face mask filter pockets. These filters will fit most face masks including ours. Approximate size: 3 1/8 in x 4 1/2 in PM 2.5 Filter for Masks, Filter for Any Mask, Filter Insert, Face Mask Filter Insert, Face Mask Filter, Filter for Face Mask, Mask Filter, PM 2.5, HEPA FILTER for MASK Easy to use: Package of 20 filters.