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[โ€“] 30 points 3 years ago (4 children)

Dihydrogen monoxide except for when it completely replaces the air.

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  • [โ€“] 14 points 3 years ago (2 children)

    Oh, that shit is dangerous.

    At high pressure it can cut through pretty much anything.

    Heated to vapor can cause severe burns. (Steam)

    A high percentage in the air when it's not enough will cause your body's cooling ability to fail. Killing you very quickly.

    And that's just off the top of my head.

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