| Re: Not sure if I'm going mad but....
Hypoxic mix or heliair?
Heliair wouldn't need O2 cleaning as it is just helium and air, and the mix would be hypoxic.
What the others said if it is a true trimix with pure O2 (or a rich EAN) going in.
__________________ Can you imagine drifting along in the sea with your mouth open and a load of f***ing plankton going in? You'd like it, would you? www.westons-cider.co.uk
Azerbaijani Association of Technical Divers Publicity Officer and Goat Wrangler |