Enriched Air Nitrox Course

Enriched Air Nitrox is PADI's most popular specialty certification — and once you understand what it does, that's not surprising.

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What Nitrox Does

Standard scuba tanks contain the same air we breathe at the surface — approximately 21% oxygen and 79% nitrogen. Enriched air (nitrox) increases the oxygen percentage, which reduces the amount of nitrogen your body absorbs during a dive. Less nitrogen absorption means longer no-decompression limits, more time on the reef before you need to surface, and shorter surface intervals before your next dive.

For divers doing multiple dives per day — which describes most people diving in Islamorada — the difference is tangible. You get more bottom time on every dive, and you can get back in the water sooner.

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A valid scuba certification is required to enroll. Minimum age is 12.

After purchase, we'll send a confirmation email with instructions for scheduling your course.

The PADI Enriched Air course is primarily knowledge-based — no additional open water dives required. The course covers how nitrox works, how to analyze your tank's oxygen content before a dive, and how to set your dive computer correctly for enriched air diving. It can be completed through PADI eLearning before your trip or on-site at IDC.