What tools are typically used to analyze gas mixtures in EANx tanks?

Analyzing gas mixtures in Enriched Air Nitrox tanks is essential to ensure the correct composition for safe diving. The tool specifically designed for this purpose is an oxygen analyzer. An oxygen analyzer measures the percentage of oxygen present in a gas mixture, allowing divers to confirm that their tanks contain the intended blend of air and enriched oxygen before descending. This is critical because different oxygen concentrations can affect the dive profile and increase the risk of oxygen toxicity if the levels are too high.

While pressure gauges, depth gauges, and dive computers are important tools for various aspects of diving, they do not specifically analyze gas mixtures. A pressure gauge measures the pressure of the gas in the tank, a depth gauge indicates the diver's depth, and a dive computer provides information about time spent underwater and decompression limits. However, none of these tools can assess the composition of the gases in the tank, which is why an oxygen analyzer is the correct choice for analyzing EANx tank mixtures.