What must divers do before switching from air to enriched air nitrox?

The requirement for divers to take a PADI Enriched Air Diver course before switching from air to enriched air nitrox is essential for several reasons. This course provides divers with critical knowledge about the characteristics of nitrox, including its advantages and risks. Enriched air has a higher oxygen content than regular air, which influences dive planning, exposure limits, and safety protocols.

Through the course, divers learn how to analyze the oxygen content of the gas they will be breathing, how to manage oxygen exposure through depth limits, and the importance of proper dive planning when using nitrox. Additionally, the training involves practical skills such as using an oxygen analyzer and understanding the implications of using enriched air in conjunction with dive computers or tables.

Overall, completion of the PADI Enriched Air Diver course equips divers with the necessary competencies to dive safely with enriched air nitrox, making this training a pivotal step in their diving education.