Heliair
From Wikipedia, the free encyclopedia
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 has a fixed 21:79 ratio of oxygen to nitrogen with the balance consisting of a variable amount of helium.
 |
This diving-related article is a stub. You can help Wikipedia by expanding it. |
