Description

Learn to dive with enriched air nitrox in the 22 to 40 percent oxygen range to extend your no-decompression bottom time and get more out of every dive. Longer times underwater mean more to see and, for many divers, feeling fresher between dives on active trips. You’ll understand how nitrox affects your dive planning, learn to analyze your gas and set up your dive computer correctly, and become familiar with oxygen exposure and the depth limits that keep nitrox diving safe. Using your dive computer to plan and monitor nitrox dives, you’ll gain the skills to enjoy these benefits confidently on your very next dive.

Switch to Nitrox and turn every dive into a longer and more enjoyable experience. By breathing an oxygen-enriched mix, you extend your bottom time and increase the flexibility in your dive profiles. It’s the smart choice for divers who want to make the most of every minute underwater, feel more confident, and enjoy every second in the blue. This course gives you access to mixes from 22% to 40% oxygen, including the most popular blends like Nx32 and Nx36.

Dives included: no dives required (academic course).

Prerequisites

• SDI Open Water Scuba Diver or equivalent
• Minimum age 18; 10 with parental consent
• Complete a medical statement where relevant

What You Will Learn

• Benefits and limitations of enriched air nitrox
• Oxygen exposure and maximum operating depth (MOD)
• Analyzing gas mixtures and labeling cylinders
• Setting up a dive computer for nitrox
• Nitrox dive planning and safety considerations

Required Equipment

• Complete open-water scuba kit
• Nitrox-capable dive computer
• Oxygen analyzer (typically provided for analysis)
• Properly labeled enriched air cylinder

Course Requirements & Standards (SDI)

• Can be completed without required open-water dives (knowledge development), or with dives per instructor
• Enriched air 22–40% oxygen
• Emphasis on gas analysis and computer setup
• Conducted within recreational no-decompression limits

After This Course

Apply nitrox to extend bottom time on Deep, Wreck, and multi-dive trips; a foundation for further training.