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Heliair is a breathing gas consisting of mixture of oxygen, nitrogen and helium and is often used during the deep phase of dives carried out using technical diving techniques. This term is mostly used by Technical Diving International.
Additional recommended knowledge
It is easily blended from helium and air and so has a fixed 21:79 ratio of oxygen to nitrogen with the balance consisting of a variable amount of helium.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Heliair". A list of authors is available in Wikipedia.|