Computer Nitrox Diver (SDI) / Enriched Air Diver (PADI)

Diving with enriched air nitrox (EANx) is one of the most popular SDI & PADI specialities. The principle behind this programme is that it enables you to safely extend your no-stop time beyond the no-decompression limits for air at a given depth. Enriched air used conservatively can also reduce the risk of decompression sickness.


So, diving with enriched air means more time underwater, that must be a good thing, right?

And you are right, it is!

However, the additional considerations of adding extra oxygen to your breathing gas require you to be certified as an Enriched Air Diver to get enriched air fills, safely analyse the gas, properly plan and prepare for diving and then dive within the gas and your limits all of which are covered on the course.

TDI Technical Scuba Diving Courses from ScubaQuest

Whether you are into underwater photography or wreck diving, on vacation in some tropical paradise, on a liveaboard trip with 4-5 dives a day or just out for a leisurely day of diving at your local dive site, the Nitrox/Enriched Air Diver course helps you get more out of your diving by giving you more time underwater and as we have already established, that is a good thing!


We are providing this certification through either Scuba Diving International (SDI) or PADI. Both agency certifications are equally valid and recognised worldwide. Please enquire at the centre if you require your training to be through a specific agency.

Scuba Diving International (SDI)



This course consists of either one evening or a half-day theory session which can be arranged to suit the individual student.

There is no requirement to complete any open water dives on this course. However, two escorted dives can be arranged at an additional cost. In this instance, the course will be conducted on a full day basis with a theory session in the morning and two afternoon dives.


Speciality Courses are organised to fit with customer demand. Availability on specific dates will be discussed on enquiry when every effort will be made to schedule the required course into the planned forward program.


Please note: The Open Water Dive sessions at the National Diving & Activity Centre (NDAC) will be weather, water temperature and underwater visibility dependent.

ScubaQuest Dive Centre
National Diving & Activity Centre
A48, Tidenham
NP16 7LQ

Map & Directions to ScubaQuest

Course Options

This speciality can be used as a credit towards achieving a PADI Master Scuba Diver Certification or SDI Advanced Scuba Diver.

EANx Diver can be booked in conjunction with Advanced Open Water courses as part of a discounted bundled package. Check out the course pricing schedule for details.

ScubaQuest offer both traditional hard copy, classroom based theory and agency online learning packages.



The course cost includes all educational materials, equipment, tuition and certification.

Please Note: For open water dives at The National Diving & Activity Centre (NDAC) there is a daily entry charge to the site, payable on the day by all students. This is NOT included in the course fee.  Please check the NDAC website for details.

Course Requirements & Notes

  • Minimum age: 15 years old.
  • SDI/PADI Open Water or agency equivalent.
  • All documentation must be completed, reviewed and signed prior to any in-water training.

Book this Course

To book on this course, please contact us using the form below, or phone us on 01291 798 118

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Wreck Diver (SDI) / Wreck Speciality (PADI)

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Dry Suit Diver (SDI) / Dry Suit Speciality (PADI)

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Underwater Navigation (SDI) / Navigation Speciality (PADI)

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Deep Diver (SDI) / Deep Speciality (PADI)

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Computer Nitrox Diver (SDI) / Enriched Air Diver (PADI)

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Advanced Open Water Diver (PADI) / Advanced Adventure Diver (SDI)

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Scuba Diving International (SDI)
TDI (Technical Diving International)
First Response Training International
Emergency First Response
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SDI TDI Professional Development Centre
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