What are two key factors to remember when using dive tables for EANx?

When using dive tables for Enriched Air Nitrox (EANx), it is essential to consider maximum operating depth and no-decompression limits. Maximum operating depth refers to the deepest depth at which a specific Nitrox mixture can be safely used without exceeding the partial pressure of oxygen (PPO2) limits set to avoid oxygen toxicity. Each Nitrox mixture is suitable for different maximum depths depending on its oxygen concentration; as the depth increases, so does the partial pressure of oxygen.

No-decompression limits are the maximum times a diver can stay at a certain depth without requiring mandatory decompression stops during ascent. EANx dive tables provide these limits based on the gas's mix, helping divers avoid the risks associated with nitrogen narcosis and decompression sickness. Understanding and adhering to these two key factors ensures divers can manage their exposure to both nitrogen and oxygen effectively, promoting safety during their dives with EANx.