Boost Oxygen is 95% pure Aviator?s Breathing Oxygen conveniently stored in a portable can. Just like a heavy oxygen tank found on any athletic field, the oxygen is safe and natural. Boost Oxygen can be used by athletes of all ages and is implemented into the preparation, training and in-game protocols of professional athletes, teams, and their athletic trainers; even athletes who compete for Team USA. The natural oxygen comes in a 10-liter can for over 200 seconds of inhalations.