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CMAS Normoxic Trimix Diver Course

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Course Overview

This course provides training required to compentently and safely utilize breathing gases containing helium for dives that require stage decompression to a maximum depth of 60msw. The objective of this course is to train divers in the benefits, hazards and proper procedures of utilizing custom oxygen, helium and nitrogen mixtures as breathing gases.Gas mixes are not to have less than 18% of oxygen in the mix.


Minimum age of 18.
Advanced Nitrox certified.
Three Star Diver certified.
Proof of 100 logged dives.

Details of the course

The Normoxic Trimix diver course covers:

  • History of the usage of Helium
  • Physics & Physiology
  • Decompression options
  • Equipment consideration
  • Dive tables & dive computers
  • Dive planning
  • Procedures

Course duration and number of dives

The Normoxic Trimix diver course is a 4 day course and 6 dives are required.

Course Price

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Additional costs

Technical Rental equipment if needed. set p/day
Helium fills p/liter
Purchase of spool, SMB and wriste slate

Equipment requirement

The Normoxic Trimix Diver course uses technical gear configuration. All students must own or purchase a spool, SMB and wrist slate. We supply the double tanks, decompression tanks and nitrox/oxygen mixes, the decompression regulators and the oxygen and helium analyser.

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