MOLDEX P100 Particulate Filter Assembled Respirator and Cartridges. Certified under NIOSH 42 CFR 84 to have a filter efficiency level of 99.97% or greater against oil and non-oil based particulate aerosols. Filter Disk is fiberglass-free, with no plastic housing. Filter Disk is lighter than traditional cartridge style filters. Piggyback Filter Disk with Moldex 8000 gas/vapor cartridges, or use as a standalone filter. Filter Disk has a wider field of vision because of it's low profile. Approval #TC-21C-592.