When should a diver perform a safety stop during ascent?

A safety stop is typically performed at a depth of 5 meters (15 feet) during ascent to aid in off-gassing nitrogen that has been absorbed by the body. When divers ascend from deeper depths, it is crucial to do so gradually and make stops at certain depths to help reduce the risk of decompression sickness.

The 5-meter mark is not only a standard practice but is also within an acceptable depth range where divers can safely linger for a few minutes without risking nitrogen buildup. This brief pause allows the body to release excess nitrogen that may have accumulated during the dive, particularly after longer or deeper dives.

While performing safety stops at the surface, below 10 meters, or suggesting that safety stops are not required does not adhere to the best practices for diver safety and does not offer the same protective benefits against decompression sickness. Therefore, conducting a safety stop at 5 meters is considered an essential step in proper ascent protocol after scuba diving.