Why do scuba divers use a mixture of helium and oxygen instead of normal air in their scuba tanks.
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The main reason for adding helium to the breathing mix is to reduce the proportions of nitrogen and oxygen below those of air, to allow the gas mix to be breathed safely on deep dives. ... A lower proportion of oxygen reduces the risk of oxygen toxicity on deep dives.
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The main reason for adding helium to the breathing mix is to reduce the proportions of nitrogen and oxygen below those of air, to allow the gas mix to be breathed safely on deep dives. ... A lower proportion of oxygen reduces the risk of oxygen toxicity on deep dives.
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