What is one of the limitations of Enriched Air diving?

One significant limitation of Enriched Air diving is the depth limits imposed due to the increased risk of oxygen toxicity. As divers go deeper, the partial pressure of oxygen increases, which can lead to toxic effects on the body, such as seizures and other severe health issues. This phenomenon is particularly critical for Nitrox mixtures, which have higher oxygen concentrations than air. Each specific blend of Nitrox has a maximum operating depth (MOD) to ensure that divers remain within safe exposure limits to oxygen. By adhering to these depth limits, divers can mitigate the risks associated with oxygen toxicity while still enjoying the benefits of using enriched air for enhancing bottom times and reducing nitrogen absorption.