TDI CCR Air Diluent (30m)

TDI CCR Air Diluent course (30m)

The TDI Closed Circuit Rebreather (CCR) Air Diluent Diver Course is your first step into closed circuit rebreather diving and your first truly quiet dive experience!

Using the latest technology in CCRs can maximize your gas supply and provide an optimum breathing gas for any depth by maintaining a constant partial pressure of oxygen. It's like having a Nitrox blending machine on your back!

During this course, your TDI Instructor will teach you all of the necessary skills to conduct no decompression CCR dives to a maximum depth of 30 metres using air diluent.

Courses are available for APD units, Meg, Pathfinder and SF2.

How do I begin?

You start with the training materials. We will provide you with and TDI CCR online code for the Megaladon, Pathfinder and SF2 courses and the TDI manual for APD's Inspiration and Evolution units so you can do all your studying at home before you come to the dive centre. You also need to have a copy of the manufacturers manual for the specific unit.

What's in the course?

The TDI CCR Air Diluent Diver course takes an in-depth look at all of the following and more:

  • History and evolution of rebreathers
  • Comparison of open circuit (OC), closed circuit, and semi-closed circuit, rebreather (SCR) systems noting the pros and cons of each
  • Practical mechanics of the system
  • Gas physiology
  • Proper scrubber packing: in accordance with manufacturers recommendation
  • Electronic or manual systems design and maintenance
  • Dive tables
  • Dive computers
  • Dive planning
  • Emergency procedures
  • Dive checklists
  • Pre-dive checks

How long does it take?

The TDI CCR Air Diluent course takes 5 days and includes 7 dives.

What qualifications do I need?

The TDI Nitrox Diver (or equivalent) is the pre-requisite for this course along with proof of 20 logged open water dives

The minimum age of enrolment on this programme is 18yrs.

You will need to fill out a self certification medical statement. If you have any medical conditions you think may prevent you from scuba diving please feel free to contact us and we will try to be of assistance.


What's next?

Celebrate your TDI CCR qualification by spending the rest of the week diving the Zenobia wreck to a maximum of 30m.


TDI CCR Air Diluent course is 7 dives and costs €850.00 including gases, cylinders and transport (manual/online code, certification and unit hire is not included).