Half Mask Respirator Kit, SR 100, SR 229, SR 221x5 Series, M, Includes (1) Chlorine (CL), Hydrogen Chloride (HC), Hydrogen Flouride (HF), Organic Vapor (OV), Sulfur Dioxide (SD) , (1) P100 Filter, (5) Prefilter, Prefilter Holder, Test Disc, Cleaning Wipe, ID Tag, Storage Box, Facepiece Material Silicone, Head Harness Material Elastic, Respirator Connection Type Snap-In Gasket, Configured For Cartridges, Filters