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The PSAI Rebreather Diver course is a structured programme designed to build competence and confidence in diving with a closed-circuit rebreather (CCR). It includes classroom theory, equipment workshops, confined water training, and open water dives.
Instruction is typically carried out on a commonly used CCR unit such as the Poseidon MkVI, AP Inspiration, or Hollis Prism 2, depending on the centre. Your certification will be specific to the unit used during training. Centres listed on adventuro may offer cross-training or upgrade courses for other CCR models.
Upon successful completion of the PSAI Rebreather Diver course, you’ll be certified to dive using the specific rebreather unit you trained on, within recreational depth limits (typically 30 m / 100 ft) and no-decompression limits, unless advanced training is undertaken.
This certification opens up the world of silent, efficient underwater exploration. You’ll experience longer bottom times, significantly reduced gas usage, and minimal bubble emissions—ideal for photography, marine life observation, and wreck exploration. You’ll also be better prepared for further progression into PSAI’s advanced technical rebreather programmes, including decompression and expedition-level diving.
Remember that your certification is unit-specific, and cross-training is required to use different types of rebreathers. Always dive within the limits of your training and experience. Many adventuro centres offer rebreather-friendly tours, rentals, and progression training.
PSAI:
The PSAI Rebreather Diver course typically spans 4 to 5 days. It includes theory sessions, confined water skills, and at least 6 open water dives for skill development and real-world application. Course length may vary slightly depending on the rebreather unit used and student progress.
The PSAI Rebreather Diver course includes both theoretical and in-water assessments to ensure divers can safely operate a rebreather system. You'll complete a written exam covering topics such as gas physiology, equipment configuration, and emergency procedures. In-water skills are evaluated throughout confined and open water dives and include pre-dive checklists, loop volume management, manual oxygen control, and bail-out procedures. Instructors assess your ability to maintain buoyancy, control PO2 (partial pressure of oxygen), and respond to simulated failures. Most divers complete the course in 4–6 days, depending on prior experience. Some centres may offer additional remedial dives if needed. Once certified, you’ll be qualified to dive with the specific rebreather unit you've trained on, within the depth and gas limitations of your certification. You can explore and book PSAI rebreather courses through adventuro’s extensive dive training listings.
Quick answers about this qualification. For anything else, use live chat or browse bookable activities below.
Find activitiesA rebreather is a type of scuba system that recycles the gas you breathe by removing carbon dioxide and adding oxygen as needed. Unlike open circuit scuba, which vents exhaled gas into the water, rebreathers allow for longer dives and produce fewer bubbles—ideal for photography, wreck diving, and marine life encounters. However, they require more complex operation and maintenance, which is why specialised training like the PSAI Rebreather Diver course is essential.
No, you don’t need to own your own rebreather to take the course. Most training centres provide rental units that match the model used in the course. However, you must train on a specific rebreather model, and your certification will only be valid for that unit. If you later switch to a different model, you’ll need a crossover course. Check with your chosen adventuro centre to confirm available units and rental policies.
The typical course duration is 4 to 6 days, depending on your prior diving experience and comfort with technical equipment. It includes classroom sessions, confined water training, and a series of open water dives. Some centres may offer the course in modules over several weekends. It's a good idea to allow extra time in case additional dives are needed to master safety drills or buoyancy control.
The theory portion of the PSAI Rebreather Diver course includes topics such as gas physiology, oxygen toxicity, carbon dioxide management, equipment design, loop dynamics, decompression theory, and emergency procedures. You'll also learn how to plan dives using dive computers and manual calculations. The goal is to understand how to safely operate the rebreather and handle malfunctions underwater.
Once certified, you’ll be qualified to use the specific rebreather you trained on within the depth and gas limits of the course. For example, the PSAI Recreational Rebreather Diver certification typically allows dives up to 30 metres using air or nitrox. More advanced PSAI courses are available for deeper diving, mixed gases, or cave diving. Always dive within your certification limits unless supervised by an instructor.
No. The PSAI Rebreather Diver course is designed for experienced divers who already have solid buoyancy control, situational awareness, and comfort underwater. Most centres require you to be an Advanced Open Water Diver with at least 25–50 logged dives. Some may also require nitrox certification. If you’re just starting out, adventuro offers a range of beginner-friendly scuba courses to build your skills first.
Safety is a major focus of rebreather training. You'll learn how to perform pre-dive checks, monitor PO2, manage loop volume, and recognise signs of hypoxia, hyperoxia, and hypercapnia. You’ll also practice bail-out procedures, such as switching to open circuit in an emergency. These skills are rehearsed in both confined and open water settings to build muscle memory and confidence.
Yes, divers with technical backgrounds often transition smoothly into rebreather diving. Your knowledge of gas planning, decompression theory, and equipment maintenance will be a strong advantage. Some PSAI centres may offer accelerated or crossover options if you’re already certified by another agency or have extensive experience. Be sure to check prerequisites with your chosen adventuro provider.
You can find and book PSAI Rebreather Diver courses through adventuro’s network of accredited dive centres. Each listing shows available rebreather models, prerequisites, pricing, and instructor credentials. Whether you're looking to train locally or abroad, adventuro makes it easy to compare options and secure your spot online.