This article was not about using gas masks for industrial purposes lol | Hacker News

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		SR2Z 16 days ago \| parent \| context \| favorite \| on: Best Gas Masks This article was not about using gas masks for industrial purposes lol

Joel_Mckay 16 days ago | [–]

Indeed, but it seemed like the simplest way to explain shorter protection times with higher exposure levels. =3

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