How does using Nitrox affect the no-decompression limits (NDL)?

Using Nitrox can significantly affect the no-decompression limits (NDL) because it alters the composition of the breathing gas. Nitrox, which is a mixture of nitrogen and oxygen, typically contains a higher percentage of oxygen than regular air, resulting in a reduced percentage of nitrogen. Since nitrogen is the gas that contributes to saturation in the body during dives, having a lower concentration of nitrogen means that divers absorb less nitrogen at given depths.

As a result, divers utilizing Nitrox can benefit from longer no-decompression limits at the same depth compared to those using compressed air. This increase in NDL can provide more flexibility for divers, allowing them to extend their dive time without entering mandatory decompression stops. Understanding this benefit of Nitrox is crucial for safe and effective dive planning, especially for those looking to optimize their dive durations while minimizing the risk of decompression sickness.