2025-03-212025-03-212023-12-05https://hdl.handle.net/10919/1249233M half-face respirator viewed from the bottom. It has a pair of purple/magenta and yellow filter cartridges that are rated OV/SD/HC/CL/HF/HS/P100. OV means that it protects against organic vapor. SD/HC/CL/HF/HS means that it protects against acid gas including sulfur dioxide, hydrogen chloride, chloride, hydrogen-flouride, and hydrogen-sulfide. P100 means that it filters at least 99.97% of airborne particles and is strongly resistant to oil.Dimensions: 7360 × 4912Size: 14.2 MBimage/jpegenCreative Commons Attribution 4.0 InternationalPPEImageVirginia Tech