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It is a common misconception that humans absorb only oxygen when they breath. While Oxygen is the primary element that our bodies require when breating we can not breath it in pure concentration. Our own atmosphere is a Nitrogen/Oxygen mix that we inhale and require both elements. I'm not sure for the reason or chemistry behind it. However I do know that over time breathing pure oxygen will kill a person. So we need the mixed gas form similar to our atmosphere.
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∙ 14y ago
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Your dive tank has 3 year old gas in it is it safe to use?
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depends on how u r using the oxygen
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The safe residual for an oxygen cylinder is?
500 psi
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