2025-03-212025-03-212023-12-05https://hdl.handle.net/10919/125059Two MSA respirator cartridges placed side by side. The one on the left has a black and pink label with a GMA-P100 P100/OV rating. The one on the right is a white flexi-filter with an N95 rating . GMA/OV means that it protects against organic vapors. P100 means that it filters at least 99.97% of airborne particles and is strongly resistant to oil. N95 means that it filters at least 95% of airborne particles and is not resistant to oil.Dimensions: 7360 × 4912Size: 10.1 MBimage/jpegenCreative Commons Attribution 4.0 InternationalPPERespirator Filters Comparison 3ImageVirginia Tech