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Unit specific for Inspiration, Evolution and JJ CCR’s. 
The TDI Mixed Gas course (certification depends on unit/electronics used during training) is your next step into closed circuit rebreather diving and with the addition of helium as a diluent gas, it is your opportunity to explore a little deeper.


Using the latest in technology CCR’s maximize your gas supply and provide the optimum breathing gas for any depth by maintaining a constant partial pressure of oxygen (PPO2). During the dives (minimum of 6) your TDI Instructor will teach you all the necessary skills to conduct CCR dives utilizing helium as a diluent gas and oxygen levels as low as 16% to a maximum depth of 60 meters (200 feet). The skills include:

  • Calculating off-board gas requirements
  • Recovering from system failure
  • Calibration of electronics
  • Emergency procedures
  • Removing and replacing off-board gases
  • Surface marker buoy deployment

The individual TDI manuals provide comprehensive information about the unites and how they operate during a dive, this combined with the TDI Trimix Diver manual complete the academic knowledge needed to conduct mixed gas CCR.

Course Prerequisites:

  • Minimum 50 rebreather hours with 25 hours deeper than 20 meters
  • 18 years of age
Additional Prices & Course Information:
  • Gas: Price Extra (student must also pay for Instructors gas)
  • Sofnolime: Price Extra (student must also pay for Instructors sofnolime)
  • Equipment: Price Extra
  • Time: 7 days
  • Dives: 6 dives


Diving ActivityPrice (IDR)
Mixed Gas CCR Diver 26,600,000
PADI CDC Career Dive Professional

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