Air Diluent CCR (MOD 1)

The TDI CCR MOD1 / Air Diluent course is your entry point into certified closed circuit rebreather diving. This course teaches you how to safely plan and conduct no-decompression dives using a CCR with air as diluent, while developing strong rebreather fundamentals and disciplined procedures.

Designed for divers transitioning from open circuit, this program focuses on building correct habits from the start. You will learn loop management, setpoint control, buoyancy techniques, and structured problem-solving skills essential for safe CCR operation.

Training begins in confined water and progresses to open water dives, allowing you to develop confidence while maintaining strict procedural discipline. By the end of the course, you will be certified to dive a CCR independently within recreational no-decompression limits.

This course forms the foundation for all advanced CCR training, including decompression and trimix rebreather diving.