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Go Tech with our PURE Team of Technical Instructors

Go Tech

Course Overview

The TDI Advanced Trimix Course provides the training required to competently and safely utilise breathing gases containing helium for dives that require staged decompression, utilising Enriched Air and/or oxygen mixtures during decompression to a maximum depth of 100m. The objective of this course is to train divers in the benefits, hazards and proper procedures of utilising custom O2/He/N2 mixtures as breathing gases.


5 days

Program limits

100 meters

Required Equipment

– Deco cylinder and oxygen regulator (provided during training)
– Deco buoy and reel


– Minimum age: 18 years.
– Certified Extended Range Diver or Technical Diver or Tec Deep Diver or equivalent.
– Show proof a minimum of 200 (IANTD) or 100 (TDI) logged dives with 25 deeper than 30 meters.
Prior logged experience with double cylinders and any other unfamiliar equipment
Similar courses are available through IANTD, TDI and PADI

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