The main difference between Open Circuit Scuba or Semi-Closed Circuit Rebreather diving and a Closed Circuit Rebreather, is that it maintains a constant P02 during the dive. This means that instead of planning a mix for a given depth, the rebreather constantly changes the mix to suit the depth you are at. This way the system is continually changing the 02 content to maximize 02 levels, and therefore minimize N2 levels. There is an increase of about 10% dive time over conventional OC (Open Circuit) or SCR (Semi-Closed Rebreather) Nitrox diving. Naturally the CCR (Closed Circuit Rebreather) is a more complicated piece of equipment and requires more involved training, but it isn't beyond the realms of most competent divers. If you hold an Advanced Nitrox Diver certification and have good buoyancy control and discipline, then CCR (Closed Circuit Rebreather) diving should not be too difficult. The Inspiration Closed Circuit Rebreather is the first CE approved closed circuit breathing system approved to 50 metres with Air as the diluent gas (40 metres recommended) and 100 metres with Heliox. The dual microprocessor oxygen-level controllers automatically maintain a constant partial pressure of oxygen giving outstanding gas duration and an optimum breathing mix at all depths. With No-stop times dramatically increased, the benefits of perfect buoyancy control, warmer, quieter diving and bubble free operation allowing really close wildlife encounters the Inspiration closed circuit rebreather is revolutionising diving today, offering a whole new experience to Sport and Commercial divers worldwide. Prerequisites for this course are minimum age 18, a verified log of at least 70 dives, have completed the CCR Introductory Rebreather Course (may be combined with the program), and a minimum certification level of Advanced Nitrox Diver. Because we need to complete at least 420 minutes of in water time, most people choose to do this course with us abroad during the winter, thus avoiding long cold dives in fresh water.

Price: Inspiration £3955, Training £650 (5 Day Course)