Wrong, Nitrox is used at shallower depths to allow for LONGER bottom time with less Nitrogen build-up in the tissue, it also requires certification to use as well as Oxigen scrubbed bottles and first and second stage regulators.
by 9livez March 27, 2005
A mixture of nitrogren and oxegyn that you would breathe if you were to go scuba diving below a certain depth
by Jeff February 5, 2004