What is one major risk associated with using Nitrox?

Using Nitrox poses a significant risk of oxygen toxicity, primarily due to the increased partial pressure of oxygen compared to air when diving with higher oxygen concentrations. As divers use Nitrox blends that exceed the typical oxygen percentage found in regular air (which is about 21%), it is essential to manage the exposure to elevated oxygen levels carefully.

Oxygen toxicity can manifest in various forms, including central nervous system toxicity and pulmonary toxicity. Central nervous system toxicity may occur at depths greater than 1.6 ATA (atmospheres absolute), potentially leading to seizures or loss of consciousness while underwater, which can be extremely dangerous. The risk of oxygen toxicity emphasizes the importance of dive planning, monitoring maximum operating depths for specific Nitrox mixtures, and adhering to recommended exposure limits.

Understanding the implications of oxygen toxicity is crucial for divers using Nitrox, as it requires strict adherence to guidelines and careful calculation of dive profiles to minimize risks. This understanding ensures safer diving practices and enhances the diver’s overall experience while utilizing Nitrox.