Click to open image viewer. A Shalon Chemical Industries Ltd., adult model 4A1, Nuclear, Biological, and Chemical (NBC), black, rubber gas mask (2016.122a), with a Type 80, NBC filter canister ...
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Primitive gas mask fails the chlorine test
This video follows a primitive gas mask built from leather, bamboo, and activated charcoal. The real challenge was whether a handmade filter and seal could handle toxic gas without leaking. The first ...
All respirators stop working eventually, though in the case of half-masks and military-style gas masks, filter canisters can be replaced. To understand why, it's useful to know how respirators work in ...
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