The Helitrox Diver course teaches you how to plan and execute Helitrox-based dives that may require stage decompression and utilize EANx and/or oxygen for stage decompression. This course is designed to teach you the hazards of utilizing Helium for dives to a maximum depth of 150 fsw / 46 msw that may require stage decompression, utilizing EANx mixtures and/or oxygen during decompression.

During your training, you’ll complete at least four open water dives using a Helitrox mixture (26% oxygen / 17% helium) of which at least one will be a repetitive dive. Your NAUI Technical Instructor may combine your Helitrox course with the Decompression Techniques Diver Course, with additional training and certification dives.

Your studies will include the knowledge necessary to plan and safely execute Helitrox dives including gas needs and requirements, oxygen toxicity limitations, nitrogen narcosis limitations, and emergency planning, including omitted decompression, oxygen toxicity, decompression sickness, and equipment failure.

Topics covered will also include emergency and contingency procedures, entry and descent techniques; inert gas narcosis and oxygen toxicity; variable ascent-rate techniques and deep-stop models; diver trim, ballast and buoyancy compensation; tethered or untethered decompression methods; shore or boat based dive team support and chamber locations; communications and emergency breathing gases; and NAUI Technical Equipment Configuration (NTEC).