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TDI CCR Air Diluent Decompression Diver - Triton M3S Rebreather

This is the second level certification course for divers wishing to utilize a closed circuit rebreather (CCR) for air diving. The objective of the course is to train divers in the benefits, hazards and proper procedures for diving a CCR and to develop basic CCR diving skills to a maximum depth of 45 metres using an air diluent for formal decompression diving.


Pre Requisites

  • To be a minimum of 18 years old
  • Certified Open Water Diver or equivalent
  • Minimum 50 logged dives
  • Provide proof of TDI Advanced Nitrox Diver and Deco Procedures Diver or equivalent from agencies recognized by TDI
  • *Sidemount Qualification with 10 logged dives


  • Minimum age 18
  • TDI Air Diluent CCR Diver certified or     equivalent
  • 30 hours on the CCR unit
  • Six months CCR diving experience

Course Structure

Day 1: Theory and Equipment Session, Confined Water Session

Day 2: Dives 1 & 2

Day 3: Dives 3 & 4

Day 4: Dives 5 & 6

Day 5: Dive 7 & Theory Exam

*The Triton unit can be dived in different configurations including single tank, twin tank and side mount. If side mount is going to be used the diver is required to have a sidemount certification with 10 logged dives using sidemount configuration.


Course Pricing

Training and Instructor Fees $1495

*CCR Unit Rental fees apply



Crossover Course

If a student already qualified as TDI CCR Air
Diluent Deco Diver or equivalent from an agency recognized by TDI and wishes to qualify on another CCR recognized by TDI, the student must follow all unit specific course standards with the exception of:
  • Minimum of 60 minutes confined water training to a maximum of 9 metres
  • Minimum of 180 minutes open water training to be completed over a minimum of 3 dives to a maximum of 45 metres

Course Pricing

Training and Instructor Fees $899

*CCR Unit Rental fees apply