Difference between Trimix and Helitrox

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Permalink Reply by Maciej Arkuszewski on October 31, 2009 at 8:52am

Hey Xavier.

Trimix is a more general term to describe any mixture of oxygen, helium and nitrogen. Helitrox is a NAUI term which applies only to 25/17 trimix. Outside of NAUI it is also often used as a general term for hyperoxic (O2 > 21%) trimix.

In UTS we use two hyperoxic trimixes: 25/25 as a bottom gas for 80-130 foot range and 35/25 as a deco gas for 80-130 deco segment.

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