tech specialists



technical diving in phuket


TDI Closed Circuit Rebreather Advanced Mixed Gas Diluent (MOD4) Instructor Course

courses > gopro technical > tdi closed circuit rebreather advanced mixed gas diluent (mod4) instructor

Course Overview

This is the highest level certification course for instructors wishing to teach the KISS or Evolution/Inspiration closed circuit rebreather for advanced mixed gas diving. The objective of this course is to train instructors to teach the benefits, hazards, and proper procedures for diving Closed Circuit Rebreathers and to develop advanced skills appropriat to technical diving to a maximum depth of 100msw using a mixed gas as a diluent.


Minumum age of 21.
Proof of 10 certified Mixed Gas Closed Circuit Rebreather students.
Proof of 30 certified Mixed Gas Closed Circuit Rebreather dives with 30 deeper than 65msw.
Closed Circuit Rebreaher - Mixed Gas Diluent Decompression (MOD3) Instructor certified.

Details of the course

The Closed Circuit Rebreather MOD4 instructor course covers:

  • Physiology
  • Formula work
  • Dive tables & dive computers
  • Dive planning
  • Equipment maintenance
  • Problem solving - Emergency procedures

Course duration and number of dives

The Closed Circuit Rebreather MOD3 instructor course is a 4 day course and 4 dives are required.

Course Price

currency converter TCCR4I

Additional costs

Rental equipment if needed. set p/day
Helium fills p/liter
TDI Closed Circuit Rebreather Manual.
TDI Closed Circuit Rebreather Instructor Manual.
TDI Standards & Procedures Instructor Manual
TDI Evaluation forms

Equipment requirement

The Closed Circuit Rebreather Instructor course has no specific equipment requirement more than your standard recreational dive gear. We supply the unit, tanks and mixes, and the oxygen analyser.

Got something to ask us ?

We are Technical diving education professionals and over the years we have been asked almost everything, feel free to look at our most commonly asked technical diving questions or contact us directly.