Science Fair Project Encyclopedia
Heliair
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.
It is easily blended from helium and air and so always has a 21:79 ratio of oxygen and nitrogen with the balance consisting of helium.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details


