Entry Level Trimix

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Dive Travel Guide

The TDI Entry Level Trimix Course provides the training required to competently and safely utilize breathing gases containing helium for dives that require staged decompression, utilizing Nitrox and or oxygen mixtures during decompression to a maximum depth of sixty (60) MSW.  The objective of this course is to train divers in the benefits, hazards and proper procedures of utilizing custom oxygen/helium/nitrogen mixtures as breathing gases.

Pre-Requisites

• Be a minimum age of eighteen (18)




• Be certified as a TDI Advanced Nitrox Diver and TDI Decompression Procedures Diver (or equivalent)




• Show proof of one hundred (100) logged open water dives

Structure and Duration

• Four (4) decompression dives with a minimum accumulated bottom time of one hundred (100) minutes



• Two (2) dives should be deeper than forty (40) MSW


• 2 dives may be credited from Extended Range Course


• 1 Academic session

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