Dramatically Increased No-Stop Times

The significance of diving with an oxygen-rich breathing gas is that the percentage of inert gas is considerably lower. Consequently, the time allowed to dive before decompression is required – no-stop time – is dramatically increased.

Down to 30m these benefits are huge. For example you could stay for nearly 3 hours at 20m (with the Inspiration, or about 2.5 hours with the Evolution - due to the smaller scrubber unit) without requiring deco compared to just 36 minutes on open circuit.

Below 30m APD CCRs significantly extend no-stop times – typically twice the dive times at air-range depths currently dived on open circuit.