Argox

[Omicron]

It is a very experimental gas yet in diving.

Argon, as we know, is an extremely heavy gas - it is typically used for drysuit inflation due to it's ability to provide enhanced insulation over air, and especially trimix.

The theory of using Argon mixes (argox) for deco is that you are maximizing the differentials (for lack of a better word...and I'm tired) between the helium and nitrogen in your body.  This could, in theory, lead to faster decompression/offgassing.

Just don't use it deep - it's narcotic as hell from what I've heard.

Interested to hear the response....