Why are dive tables or dive computers important?

Dive tables and dive computers are crucial tools for any diver because they specifically determine allowable bottom times and safety stops based on various factors, such as depth and time spent underwater. These tools are designed to help divers avoid decompression sickness by calculating the necessary no-decompression limits for different depths.

Understanding the nitrogen absorption levels at varying depths and how long one can stay at a depth without needing mandatory decompression stops is essential for safe diving practices. Carrying out safety stops allows divers to safely off-gas nitrogen absorbed during the dive, which further minimizes the risk of developing decompression illness upon ascent.

While equipment recommendations, underwater navigation, and communication are also important elements of a diving experience, they do not directly relate to the physiological safety considerations during a dive in the same way that dive tables and computers do.