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I'm no expert of gas masks but.... i don't think that us how PMG's work Infinity Ward : r/gasmasks
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Gas Masks
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3 Ways to Wear a Gas Mask - wikiHow
Developers, this isn't how gas masks work. Having hair between the gasket and your skin renders them complete useless. No operator would willingly do this, ever. : r/ModernWarfareII
8 Things You Should Know Before Buying a Gas Mask
Gas mask - Wikipedia
Do Gas Masks Work? | Poisonous Gas Masks | Live Science
