This is the second level certification course for divers wishing to utilize a Closed-Circuit Rebreather (CCR) for mixed gas diving using a Helitrox Diluent. You can take this course directly if you are a trained decompression diver in open circuit. 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 of 45 meters/150 feet, using an air/nitrox/helium diluent for formal decompression diving. Students are permitted to utilize a diluent and bailout mix with no greater than a 35% helium content and no less than a 21% oxygen content and are permitted to use up to 100% oxygen for decompression.

The JJ CCR is a rugged and versatile rebreather developed for harsh wreck and cave environments. It has been called ‘the 4 x 4 of the rebreather community, which in many ways is the perfect description as it is built for all types of terrain and can be adapted to handle the most demanding adventures. There are many different CCRs on the market, but we firmly believe JJ CCR is one of the best! The JJ CCR is known for its robust construction, user-friendly design, and versatility. It is often used by technical divers who engage in deep or extended dives, where conventional open-circuit scuba diving equipment may be insufficient.

As with any diving equipment, it is essential to receive proper training and certification before using the JJ CCR or any rebreather system. Diving with a rebreather requires additional knowledge and skills beyond open-circuit scuba diving due to the different gas management and potential risks associated with closed-circuit systems.

The TDI JJ 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 the necessary skills to conduct no decompression CCR dives to a maximum depth of 30 metres/100 feet using air diluent.

The JJ CCR is a rugged and versatile rebreather developed for harsh wreck and cave environments. It has been called ‘the 4 x 4 of the rebreather community, which in many ways is the perfect description as it is built for all types of terrain and can be adapted to handle the most demanding adventures. There are many different CCRs on the market, but we firmly believe JJ CCR is one of the best! The JJ CCR is known for its robust construction, user-friendly design, and versatility. It is often used by technical divers who engage in deep or extended dives, where conventional open-circuit scuba diving equipment may be insufficient.

As with any diving equipment, it is essential to receive proper training and certification before using the JJ CCR or any rebreather system. Diving with a rebreather requires additional knowledge and skills beyond open-circuit scuba diving due to the different gas management and potential risks associated with closed-circuit systems.