The World Anti-Doping Agency has decided it won't ban hypoxic chambers until further studies can determine their health implications.
On Saturday, WADA ruled the chambers enhance performance and violate “the spirit of sport,” but chose not to add them to the list of banned substances and methods for 2007.
WADA's 2007 Banned Substances List:
WADA's Altitude Tent Debate Heats Up
Thu Aug 10, 2006