As a Nitrox Diver, you'll be able to increase your bottom times and safety margins and reduce surface intervals, so you can spend more time diving and less time waiting. In this program you'll learn new skills and increase your dive knowledge. You'll also learn how to plan and safely dive with enriched air mixtures of up to 40% oxygen, and upon completion, you'll earn your SSI Enriched Air Nitrox 32% or 40% certification.