What is the effect of breathing Nitrox at shallower depths?

Breathing Nitrox at shallower depths significantly reduces nitrogen absorption, which is one of the primary advantages of using this gas mixture in scuba diving. Because Nitrox has a higher concentration of oxygen and a lower concentration of nitrogen compared to air, divers experience slower nitrogen uptake at shallower depths. This not only helps in reducing the risk of decompression sickness but also allows for longer no-decompression limits, enhancing dive times.

However, it is crucial to monitor oxygen exposure limits when using Nitrox. As divers go deeper, the partial pressure of oxygen increases, which can lead to oxygen toxicity if it exceeds safe levels. Therefore, while the reduction of nitrogen absorption is beneficial, divers must be mindful of their depth and the associated risks of elevated oxygen partial pressures. This balance is critical for safe diving practices when using Nitrox.