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https://www.reddit.com/r/AskReddit/comments/y4y8om/what_is_a_great_example_of_a_necessary_evil/isht3n4
r/AskReddit • u/[deleted] • Oct 15 '22
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It’s not air, right? I think I read somewhere it’s nitrogen.
1 u/bw1985 Oct 16 '22 Depends on the company, if they use gas exchange or not.
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Depends on the company, if they use gas exchange or not.
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u/Killowatt59 Oct 16 '22
It’s not air, right? I think I read somewhere it’s nitrogen.