What equipment modification is necessary for diving with nitrox?

When diving with nitrox, it is crucial to use oxygen-clean equipment and adhere to proper gas blending procedures. This is because nitrox, which contains a higher percentage of oxygen than regular air, poses a greater risk of oxygen toxicity at deeper depths. Equipment must be free from contaminants and lubricants that could ignite or react with the higher oxygen levels in nitrox.

Using oxygen-clean equipment means that all components, such as tanks, regulators, and valves, have been cleaned and are suitable for oxygen service, minimizing any risk of combustion. Proper gas blending procedures ensure that the nitrox mixture is accurately prepared to the desired percentage, maintaining the safety of the dive.

In contrast, using standard scuba tanks may not be appropriate as they may not be designed for higher oxygen concentrations without proper cleaning. While water-resistant equipment is beneficial for general diving, it does not specifically address the unique considerations associated with nitrox. Increased tank pressure tolerance is not a standard requirement for nitrox diving, as the key concerns revolve around the oxygen content rather than increased pressure. Thus, the necessity for oxygen-clean equipment and correct gas blending procedures is vital for safe nitrox diving.