NAUI Enriched Air Nitrox (EANX... Do you want to extend your bottom time, lessen your surface interval, and maximize every dive? Become a NAUI Enriched Air Nitrox diver!

PADI Enriched Air (Nitrox) Div... Learn why nitrox allows you to make longer dives and how to dive nitrox safely through online independent study. Meet with your PADI Instructor for hands-on practical exercises.

SDI Computer Nitrox Diver Nitrox is a breathing gas that has a lot of benefits for both new and experienced divers. This course will cover the use of nitrox mixtures from 22 to 40 percent oxygen.

SSI Enriched Air Nitrox As a Nitrox diver, you can increase your bottom times and safety margins, plus shorten your surface intervals - so you can spend more time diving and less time waiting!