Mixed Gas and Decompression Diving

Mixed Gas and Decompression Diving

Technical divers use a variety of mixed gases to accomplish mission objectives.
NAUI offers a variety of training programs for mixed gas and decompression diving including:

Technical Decompression Diver

This course provides you with the theory, methods, and procedures of planned staged decompression diving while using optimal breathing gas mixtures. Participants will learn how to plan and conduct a standard staged decompression dive to depths not exceeding 130 fsw (40 msw).

Helitrox Diver

The NAUI Helitrox Diver course provides the training and experience necessary to understand the hazards of utilizing helium-enriched EANx for dives to depths not exceeding 150 fsw (46 msw) that may require staged-decompression, utilizing EANx mixtures and/or oxygen during decompression. Graduates will be competent plan and execute extended range dives requiring staged-decompression utilizing Helitrox and oxygen.

Trimix Diver

The NAUI Trimix Diver course provides you with the skills and knowledge needed to minimize the risks of utilizing helium-based trimix breathing gas mixtures for dives to a maximum depth of 200 fsw (61 msw) requiring staged-decompression and utilizing EANx mixtures and/or oxygen during decompression.

Extreme Exposure Diver

The NAUI Extreme Exposure Diver course provides you with the experience and knowledge needed to minimize the risks of diving to depths beyond 200 fsw (61 msw) while utilizing helium-based trimix breathing mixtures, hypoxic trimix breathing mixtures, helium-based and EANx-based travel gases, as well as EANx and oxygen during decompression.

Technical Support Leader (TSL)

The NAUI Technical Support Leader (TSL) course trains knowledgeable NAUI Instructors, Divemasters, and Assistant Instructors who are also technical divers to act as part of a support team for technical diving, training activities, and guiding technical dives that are not in an overhead environment. An active-status NAUI TSL is qualified to assist an active-status NAUI Technical Instructor in technical diving instruction.

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