What is the recommended maximum ascent rate for recreational divers?

The recommended maximum ascent rate for recreational divers is typically around 9 to 10 meters per minute. This rate is established to minimize the risk of decompression sickness, commonly known as "the bends," which can occur if a diver ascends too quickly. Ascending at this rate allows the body sufficient time to off-gas nitrogen that has been absorbed during the dive.

By adhering to this ascent rate, divers can also ensure they have adequate time to make a safety stop at around 5 meters (15 feet) to help further prevent decompression illness. This practice also promotes safer diving habits and helps maintain the physiological balance needed for a safe return to the surface. Maintaining a slower ascent rate of 9 to 10 meters per minute enhances diver safety and is an essential guideline in recreational diving.