What is considered a key element of dive logs in EANx diving?

A key element of dive logs in EANx diving is the distinction between each type of gas used to prevent confusion in future dives. This practice is essential for ensuring safety and effective planning for future dives, especially when divers use different gas mixtures, such as air, Nitrox, or other specialized gases. By clearly noting the gas blend utilized, divers can better manage their exposure to oxygen and avoid the risks associated with oxygen toxicity or inadequate decompression due to improper gas use.

While items like personal feelings, total dive time alone, or simply logging dive locations can hold some value, they do not contribute to the safety, clarity, or operational efficiency that understanding gas mixtures provides. This distinction helps divers track their experiences diligently and prepares them for future encounters with a clear record of what has been successful or needs consideration.