What should a diver do to manage their oxygen exposure during Nitrox dives?

Monitoring depth and time closely is essential for managing oxygen exposure during Nitrox dives because the primary concern associated with nitrogen-oxygen mixtures is the risk of oxygen toxicity. Each Nitrox blend has a specific maximum operating depth (MOD) determined by its oxygen content, where diving beyond that depth increases the risk of oxygen toxicity significantly.

By carefully tracking their depth and dive time, divers can ensure they stay within safe limits. This involves understanding the maximum partial pressure of oxygen for their specific Nitrox mix and adjusting their dive profiles accordingly. This vigilance allows for safe exploration of the underwater environment while minimizing the potential risks associated with increased oxygen levels.

The other options, while they may touch on aspects of safe diving practices, do not specifically address the critical management of oxygen exposure, which is the focal point of the question.