Divers often use for diving a mixturein which nitrogen is replaced by helium.
For breathing, the substitution of gases, although unaccustomed, but does not have any negative effects, although there may be some discomfort with unaccustomedness.
Helium is used mainly for deep diving. In this case, it reduces the risk of bends. For those whose work is related to deep diving, helium is a real salvation. As you can see from the above, helium is an amazing gas with many unexplored possibilities.
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