Why become a TDI Trimix diver?

As your motivation to explore progresses you will find that you may want to go deeper to dive that wreck that is part of history or that cave system that you have read so much about. One of the major limiting factors of going deeper is narcosis; TDIs Trimix Diver course shows how to minimize the effects of narcosis by adding helium to offset the nitrogen in your breathing gas.

What will I do?

While taking the Trimix Diver course your TDI Instructor will teach you how to plan and execute dives utilizing as little as 18 percent oxygen and diving to maximum depth of 60 m/200 feet with a blend of helium appropriate for the planned depth. The course covers topics and skills such as

Dive team planning
Gas matching
Cylinder labeling
Surface marker deployment
Equipment configuration
Thermal protection options

What do I need to start?

Be a minimum age of eighteen 18
Have a minimum certification as a TDI Advanced Nitrox Diver and Decompression Procedures Diver (or equivalent).
Show proof of a minimum of 100 logged dives.

What does the course include?

For the price of $995 you will complete 4 dives with a maximum depth of 60 metres, manual and certification.

What do I need to provide?

Technical diving is generally very equipment involved, your TDI Instructor will go over the specific requirements at the beggining of your course and what pieces of equipment you will need to supply. Gas blends and cylinders are not included in the cost of the course.




Why become an Advanced Trimix diver?

The TDI Advanced Trimix Diver course is the top level of training for open circuit divers wishing to dive to depths as deep as 100 m / 330 feet utilizing hypoxic levels of oxygen (below 17 percent). This course is perhaps one of the most informative and challenging and upon completion you are among some of the most elite divers.

What will I do?

Your TDI Instructor will provide you with valuable information and skills, the topics that will be covered are as following

  • Equipment management
  • Multiple stage cylinder labeling and placement
  • Complex decompression planning and contingency planning
  • Dive team awareness and communication
  • Gas monitoring and management
  • Use of travel gasses

The TDI Advanced Trimix manual is one of the most up to date manuals and includes all the latest of technology and practices being used.


What do I need to start?

  • Be a minimum age of 18
  • Have a minimum certification as an Extended Range Diver or Entry Level Trimix Diver (or equivalent).
  • Show proof a minimum of 100 logged dives with 25 deeper than 100 feet/ 30 meters.
  • Prior logged experience w/ double cylinders and any other unfamiliar equipment. I.E. Dry suit

What does the course include?

The course cost is $1,295 and will provide you with the proper training, manuals, 4 dives and certification.


What do I need to provide?

Course Info


Cost of Course $1,295.00
Number of Dives 4
Max Depth 100M
Includes Manuals, Certification
Does Not Include Equipment and gas mixes


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