HIGHT-EFFICIENCY FILTRATION – 60923 Filter Cartridges for Respirator are composed of electrostatic filter cotton and high-efficiency activated carbon. 99.97% Filter organic gas, acidic gases, chlorine, sulfur dioxide, hydrogen sulfide, hydrogen fluoride, dust, acetone, methylamine, formaldehyde. 60923 filter cartridge also filter radioactive iodine or bromomethane, non-oily and oily particulate, etc. COMPATIBLE WITH MOST RESPIRATORS – Our 60923 particulate filter is suitable for various half and full face respirator masks, respirator cartridges & filters compatible with 6000, 7000, and FF-400 series, and use with masks such as 6200 6800 7502 6502QL FF402. QUICK ASSEMBLY AND DISASSEMBLY – 60923 Respirator Filters are ergonomically designed with a trapezoidal center of gravity swing, which is less prone to neck fatigue. Make you feel safe and breathe freely. Efficient filtering make you have a good work mood. WIDE APPLICATIONS – The respirator cartridges applications are petrochemical, laboratories, pharmaceutical, chemical manufacturing, etc. This mask filter anti airborne particles of dust, pollution, ash, splashing, debris, chiseling, cleaning, furnace operation, grinding, painting, casting, sanding, sawing, welding, etc. FRIENDLY SERVICE – The cartridges for respirators usually last 150-220H. Activated carbon filters must be used with respirator masks and cannot be used alone. Item Dimensions LxWxH: 1 x 1 x 1 inches. Product Dimensions? 1 x 1 x 1 inches; 18.85 Pounds. Item model number? 60923 Respirator Cartridges. Date First Available? November 23, 2023. Country of Origin? China. And we will work with you to resolve it to your satisfaction.