The most popular dive specialty worldwide — and for good reason. Breathing gas with a higher oxygen content means less nitrogen absorption, which translates to longer bottom times, extended no-decompression limits, and less fatigue after your dives. Whether you're doing multiple dives in a day or just want to get more out of every dive, Nitrox is the smartest upgrade you can make as a diver. And the best part? It's a knowledge-only course — no extra dives required.
Course Structure
Knowledge sessions (theory only, no mandatory dives):
• The science of nitrox: oxygen, nitrogen, and partial pressures
• Analyzing cylinders and proper labeling
• Setting your dive computer for nitrox mixes
• Safety considerations: oxygen exposure and limits
Practical workshop – hands-on gas analysis and logging practice with your instructor
What You’ll Learn
- Benefits and limits of nitrox diving (up to 40% oxygen)
- How to plan and safely execute nitrox dives
- How to analyze and label tanks, and set your computer correctly
- Managing oxygen exposure and recognizing limitsHow nitrox can reduce fatigue on repetitive dives
Requirements
- Minimum certification: Open Water Diver (or equivalent)
- Minimum age: 10 years
- No prior nitrox training required
Certification / Progression
- Certification: SSI Enriched Air Nitrox Specialty, recognized worldwid
- eCertified to dive nitrox blends up to 40% O₂Great complement for Deep, Boat, or Liveaboard diving
- Counts toward SSI Specialty Diver, Advanced Open Water Diver, and Master Diver recognition