IANTD Normoxic Trimix Diver

This Programme is designed to train those who wish to dive to depths between 39 msw and 60 msw, but who do not wish to breathe air below 39 msw. Trimix affords a means of reducing narcosis on dives to such depths.

The knowledge and skills taught in this programme are more than adequate to qualify divers to perform Trimix Dives outside of training up to 60 msw.

Must be qualified as an IANTD Advanced EANx Diver.

Must provide proof of a minimum of 100 logged dives, of which at least 30 were deeper than 27 msw or sufficient experience doing technical dives to satisfy the instructor that the student has the ability and knowledge to continue into this level of training.

Must be a minimum of 18 years of age.

IANTD Liability􏰍 Release

IANTD Medical Questionnaire


DSAT Tec Trimix 65 Diver 

This course opens up the advantages of trimix to the diver, and divers are qualified to make multi-stop decompression dives that employ EANx and oxygen for accelerated decompression, and any trimix with an oxygen content of 18% or more.

They can dive to a maximum depth of 65 metres/210 feet.

The PADI Tec Trimix 65 course is intended to extend the depth range of technical divers already trained and qualified to use air, enriched air and oxygen for technical decompression dives beyond 50 metres /165 feet.

This course is for Tec 50divers (or those holding a qualifying certification from another training organization). The course extends your depth range capabilities by training you to use trimix (a blend of helium, oxygen and nitrogen).

You will:
• Plan and execute at least five trimix decompression dives using various trimix blends
• Use decompression software to create custom dive tables and dive plans
• Make training dives as deep as 65 metres/210 feet

You must be

  • Be a PADI Rescue Diver (or hold a qualifying certification from another organization and having proof of CPR and first aid training with the previous two years).
  • Be certified as a (or hold a qualifying certification from another organization)
  • Be at least 18 years old
  • Have logged at least 100 dives

Download PADI Medical Statement (signed by a physician)

Standard Safe Technical Diving Practices Statement of Understanding 


Tec Dive Log Page


TDI Trimix Diver Course

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 200 fsw /60 msw.

Upon successful completion of this course, graduates may engage in technical diving activities utilizing custom Trimix mixtures without direct supervision so long as:
The diving activities approximate those of training

 The area of activities approximate those of training
 Environmental conditions approximate those of training

PRE-REQUISITES Minimum age of 18

 Minimum certification as a TDI Advanced Nitrox Diver and Decompression Procedures Diver (or equivalent)

 Minimum of 100 logged dives or equivalent at the discretion of the instructor

General Liability Release and Express Assumption of Risk 

Technical Diving International Medical Statement