What is one reason divers should prepare for deeper dives with nitrox?

Get ready for the SSI Specialty Course Enriched Air Nitrox (SC-EAN) 40% Level 2 Test. Review key concepts with flashcards and multiple choice questions, complete with hints and detailed explanations. Prepare for success!

Preparing for deeper dives with nitrox primarily involves managing the risk of gas toxicity, notably oxygen toxicity. As depth increases, the partial pressure of oxygen in the breathing gas also increases, which can lead to toxic effects. Nitrox, being a gas mixture with a higher percentage of oxygen than air, allows divers to reduce the amount of time they spend at depths where oxygen toxicity could become a concern.

When using nitrox with a specific oxygen content, divers must carefully plan their dives to ensure that they do not exceed the maximum operating depth (MOD) for the mix. This thorough planning includes monitoring their depth, time underwater, and adhering to established no-decompression limits. This helps mitigate the risk of oxygen toxicity and allows divers to explore deeper dive sites safely.

While the other options might seem beneficial, they are not directly linked to the necessity of preparing for deeper dives with nitrox. Reducing effort at depth, enhancing visibility, and increasing dive duration are important factors in diving but do not address the critical aspect of managing gas toxicity, especially as the use of higher-oxygen mixtures comes with specific risks that need to be mitigated through proper preparation.

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