What is meant by "no-decompression limit"?

The term "no-decompression limit" refers to the maximum time a diver can spend at a specific depth without having to perform mandatory decompression stops during their ascent. When divers ascend from depths, they must allow nitrogen absorbed in body tissues to safely off-gas without causing decompression sickness, often referred to as "the bends." If a diver exceeds the no-decompression limit, they risk having to make planned stops to decompress as they ascend, which is essential for their safety.

Understanding this concept is critical for divers as it informs their dive planning and helps them manage their time underwater while ensuring their safe return to the surface. The no-decompression limit is influenced by various factors including depth, time spent underwater, and the diver’s profile, making it a vital consideration for safe diving practices.