Most popular Diving Specialty, Allows You to Enjoy Longer Dives with a Greater Safety margin by Diving with a Gas that has More Oxygen and Less Nitrogen.

Enriched Air EANx

The EANx (Enriched Air Nitrox) certification is a diving specialty that teaches you how to use air mixtures with a higher percentage of oxygen (and a lower percentage of nitrogen) to extend your bottom time and reduce your surface interval, with a greater safety margin. To obtain it, you must be a certified open water diver and complete a course that includes theory on the benefits and dangers of EANx, and how to plan and analyze your tanks.

What is EANx (Enriched Air Nitrox)?

It is any gaseous mixture of oxygen and nitrogen with more than 21% oxygen.

A recreational diver uses "normal air," which has 21% oxygen.

Enriched air (EANx) reduces the amount of nitrogen absorbed into the diver's tissues.

Benefits of EANx Certification

Longer bottom times: By absorbing less nitrogen, you can remain at maximum depth for longer.

Shorter surface intervals: Less rest time is required between dives to eliminate nitrogen from the body.

Greater safety margin: Reduces the potential risk of decompression sickness.

Comfort: Can mean less fatigue after diving.

Certification Requirements:

Be a certified open water diver.

Be of the minimum age requirement (generally 10-12 years old with parental consent, or 18 years old).

Be in good health and complete a medical questionnaire.

How do I get certified?

Theory Course: You'll learn about the benefits and dangers of diving with enriched air, dive planning, and procedures for analyzing and marking tanks.

Practical Course: You'll apply theoretical knowledge.

Field Practice: Some specialties require the application of theory in a real diving environment, while others require only the theory needed to plan and conduct your own dives.

In short:

It's the most popular diving specialty and allows you to enjoy longer dives with a greater safety margin by diving with a gas that has more oxygen and less nitrogen.