Half Mask Respirator Kit, Advantage 420 Series, M, Includes (2) Chlorine Dioxide (CD), Chlorine (CL), Hydrogen Chloride (HC), Hydrogen Sulfide (HS), Organic Vapor (OV), P100, Sulfur Dioxide (SD) Combination Cartridge, Facepiece Material Silicone, Head Harness Material Lycra(R), Polyester, Polyoxymethylene, Polypropylene, Respirator Connection Type Bayonet, Configured For Cartridges, Filters