SF2 eCCR air diluent course

SF2 eCCR Air Diluent sidemount rebreather (MOD1)

Become a sidemount rebreather explorer

For the more demanding diver, the entry-level rebreather course for the SF2 eCCR system is available at Koh Tao Tech Divers.

On this course you will learn about the benefits, hazards, and proper procedures for rebreather diving on this specific system. Moreover you'll learn the basic eCCR dive skills you will need to the max. depth of 30 metres / 100 ft while using air as the diluent. No decompression diving during this course!
The TDI Air Diluent Rebreather course runs over five days. Should you wish to continue on to decompression procedures on CCR, the course takes seven days if you meet the prerequisites.

We highly recommend purchasing and owning your rebreather. However, we understand you might wish to try the system out before purchasing your own unit. It is possible to rent the rebreather when needed to use on your course. You can rent SF2 eCCR unit from us at 3.000 THB / day.

If you are interested of purchasing SF2 rebreather or any other Scuba Force products, contact us for the best deals.

  • Who can take this course?

    • Minimum age of 18 years
    • Show proof of twenty 25 logged open water dives
    • Minimum Open Water / Nitrox Diver or higher
    • Have a current medical examamination for scuba diving and signed medical questionnaire
    • by a licensed medical practitioner not older than 1 year old


  • Duration

    • 5 days
  • Price includes

    • 7 Training Dives
    • Online Learning
    • Gases (Air/O2 & Bailout)
    • Transport to the dive sites
    • Light refreshments on the boat; tea, coffee, water, fruits
    • Certification
  • Course content


      • How a CCR (closed-circuit-rebreather) works
      • Use of the controllers, setting and checking the flow and calibrating the PO2-sensors
      • Special considerations when planning dives using a CCR
      • Hypoxia, Hyperoxia and Hypercapnea
      • Gas management including bailout planning
      • Use of dive computers when diving with CCRs
      • Emergency procedures and coping with emergencies
      • Care and maintenance of CCRs


    • 6 open water dives in increasing depths
      • Buoyancy peculiarities compared to diving with open systems
      • Specific diving skills and problem management
      • Bailout exercises
  • Required equipment

    • Breathing System – CCR Rebreather
    • Primary Dive Light
    • Stage Bailout Regulators
    • Mask + Back up
    • Wetnote Book or Slate
    • Dive computer & Bottom Timer
    • Compass
    • Appropriate exposure suit
    • Suit – Hoot – Boots
    • Full Bladded Fins - Preferable with Spring Heel Straps
    • Wing / Backplate
    • 2 Cutting Tools
  • TDI e-learning

    wo different courses are covered with this program, CCR Air Diluent and CCR Air Diluent Decompression, not all subject matter is applicable to both. This is the entry 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 30 metres / 100 feet Air Diluent, or 45 metres /150 feet Air Diluent Decompression.

    For the diver who is already a CCR Air Diluent diver, the information in this course along with practical application with a certified TDI Air Diluent CCR Decompression Procedures Instructor will take the diver to the next level.

    Course fee includes the online academic portion of this course only. Additional fees, classroom time with a TDI instructor and/or training dives may be required.

    Price: 129.95USD


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