What is the maximum recommended ascent rate for divers?

The maximum recommended ascent rate for divers is 30 feet per minute. This rate is primarily set to minimize the risk of decompression sickness, commonly known as "the bends." By ascending at a controlled and slower pace, nitrogen that has been absorbed into the body while at greater depths can be safely released from the tissues into the bloodstream and expelled through normal bodily functions.

Ascending too quickly can lead to the formation of nitrogen bubbles, which can cause severe injuries or health complications. Following the recommended ascent rate allows divers to manage the nitrogen release more effectively, ensuring their safety during the dive. Additionally, this ascent rate often provides ample time for necessary safety stops, allowing divers to further mitigate any risks associated with rapid changes in pressure.