About Nitrox Diver

Our most popular specialty course. In 1985, Dick Rutkowski brought Nitrox Enriched Air diving into the sport diving world with the International Association of Nitrox Diving (Later IANTD). Increase your bottom times by reducing the nitrogen content in the gas you breathe by diving Nitrox. Safe and easy to calculate with either a computer or dive table, Nitrox opens up a whole new world to divers. Nitrox can be taken in conjunction with Open Water or added as a specialty diver certification. All CSI instructors hold ratings of EANx (Nitrox Instructor).