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Unit Specific for Inspiration/Evolution, KISS, Optima, Megaladon, Sentinel, PRISM, rEvo, Pelegian, Hammerhead and Titan.The TDI Air Diluent Closed Circuit Diver Course (certification depends on unit/electronics used) is your first step into closed circuit rebreather diving (CCR Diving) and your first truly quiet diving experience. Using the latest in technology CCR’s maximize your gas supply of Nitrox and provide the optimum breathing gas for any depth by maintaining a constant partial pressure of oxygen (PPO2). During the dives (minimum of seven) your TDI Instructor will teach you all the necessary skills to conduct CCR dives to a maximum depth of 30 m/100 feet. The skills for this CCR Diving Course include:


  • Setup and maintenance of the unit
  • Loop volume management
  • Calibration of electronics
  • Emergency procedures
  • Buoyancy control
  • CNS tracking

The individual TDI CCR manuals provide comprehensive information about the units and how they operate during a dive.