What is the recommended maximum ascent rate for divers during training?

The recommended maximum ascent rate for divers during training is 30 feet per minute. This ascent rate is established to allow for fundamental safety practices, such as giving the body adequate time to off-gas nitrogen absorbed during the dive. Rapid ascents can increase the risk of decompression sickness, as the body needs to eliminate nitrogen in a controlled manner.

This rate strikes a balance between safety and efficiency, ensuring that divers can safely reach the surface without undue risk. This is especially important in training scenarios, where divers may be learning new skills or practicing safety procedures. Maintaining a controlled ascent rate also facilitates the practice of safety stops, which can further reduce the likelihood of decompression illness.

In contrast, the other ascent rates are considered too fast for training purposes, where emphasis on safety and the learning process is paramount. Thus, adhering to the established maximum of 30 feet per minute promotes best practices in the safety and training of new divers.