What is the minimum duration for Level I Chambers in decompression procedures?

In decompression procedures, Level I Chambers are specifically designed to manage the initial phase of decompression, ensuring that divers who have experienced a controlled ascent can off-gas safely. The minimum duration of 5 minutes is established based on guidelines that allow for a sufficient period to facilitate the body's natural helium or nitrogen reduction processes. This duration helps decrease the risk of decompression sickness by ensuring that gases expelled from the tissues can be managed effectively before moving onto further stages of decompression or any additional treatments that may be needed. The timing is crucial as it aligns with physiological factors affecting the off-gassing rate, thus contributing to a safer outcome for divers after an ascent.