asphyxiant gases definition
asphyxiant gases means gases that can cause unconsciousness or death by suffocation through direct oxygen displacement (physical asphyxiant) or interference with the body’s ability to absorb or transport oxygen to the tissues (chemical asphyxiant) . Examples of physical asphyxiant gases are nitrogen, argon, carbon dioxide and methane. Examples of chemical asphyxiant gases are carbon monoxide, hydrogen sulphide and hydrogen cyanide;