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I guess do not sniff hydrogen peroxide even if you want to breath more Oxygen per time because you might inhale hydrogen peroxide instead of Oxygen damaging your lungs
https://duckduckgo.com/?q=what+happens+if+you+sniff+hydrogen+peroxide+fumes&ia=web
@shortstories Just keep oxygen at a 2:1 ratio of whatever it is you are trying to inhale.
