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Q&A

What is the highest concentration of oxygen a human being can reasonably survive?

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Writing a story in which a human is trapped on an alien planet with an average temp of 6 Celsius, and I want to have the atmosphere be too rich in oxygen, but not to the point where an air tank is necessary. What combination of pressure and oxygen would make a human just functional?

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This post was sourced from https://worldbuilding.stackexchange.com/q/69396. It is licensed under CC BY-SA 3.0.

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