This is course is to provide the diver with the information necessary to utilize EAN as a breathing medium. The class may be taught as a stand-alone specialty course to certified divers or the knowledge and skills training may be integrated into the NAUI Scuba Diver course.
Upon successful completion of this course, graduates are considered competent to utilize EAN in open water diving activities without direct supervision, provided the diving activities and the areas dived approximate those of training.
At least two dives are to made using EAN, one of which is to be a repetitive dive. The student is to analyze his or her own breathing mixture and to plan and safely execute each dive.
The following topics are to be covered: history of nitrox as a breathing gas; Dalton’s law of partial pressures; physiology of oxygen and nitrogen; depth limits, advantages, disadvantages and risks of nitrox; oxygen toxicity; hazards and pre-cautions of handling oxygen; the concept of Equivalent Air Depth; use of EAN with Standard Air Dive Tables; common gas mixing procedures; and gas analyzing procedures.
Unlike many sources for enriched air Nitrox training, Deep Exposure is a recommended source for nitrox training by the authors of “NAUI Nitrox: A Guide to Diving With Oxygen Enriched Air.” Additionally, we’re heavily involved in the development of the soon to be released book on mixed gas diving in conjunction with authorities like Dr. R. W. Hamilton, J. S. Silverstein & Capt. Billy Deans. Why settle for an instructor with a basic Enriched Air Diver certification and a few nitrox dives when you can train with highly qualified and experienced instructors?