What is the recommended maximum ascent rate in scuba diving?

The recommended maximum ascent rate in scuba diving is generally set at 30 feet per minute. This rate is considered safe because it allows divers to ascend quickly enough to avoid excessive nitrogen buildup in the body while still being slow enough to give the body time to eliminate nitrogen, reducing the risk of decompression sickness. Ascending too quickly can lead to bubbles forming in the bloodstream, which can cause serious injuries or even be life-threatening. Following the recommended ascent rate helps ensure that divers can manage their decompression safely while also maintaining control during ascent.

While other rates are proposed, they are either too slow to be practical for most dives or too fast to ensure safety during decompression.