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Nitrox Diver



TDI Nitrox Diver course is an entry level course for divers wishing to utilize enriched air nitrox as a breathing gas. Also known as EAN or enriched air, get to understand how the use of increased oxygen levels benefit you during diving.  Little else has impacted recreational diving more than the introduction of nitrox, allowing more time underwater. During this course, you will learn the benefits, hazards and proper procedures for diving with EAN 22 to EAN 40 your TDI Instructor will also cover

  • Equipment considerations
  • Cylinder labeling
  • Analyzing of Nitrox

The course follows an easy to read and understand diver manual titled Understanding Nitrox and waterproof tables for quick on-site reference.


Upon successful completion of this course:

1. Graduates may engage in diving activities utilizing EAN-22 to EAN-40 without direct supervision

Graduates would be qualified to enroll in:

1. TDI Advanced Nitrox Course
2. TDI Decompression Procedures Course
3. TDI Semi-closed Rebreather Course

No dives are required to complete the Nitrox Diver course, however, optional dives can be taken if you would like to try it.

New Zealand Diving has 32% Nitrox gas banked & available demand. Other blends are available on request.

For further information visit TDI 

This course can be taken as an evening course.

To view our schedules select the book now & check out our new calendar. Alternatively call us on 09 422 3599

Who this course is for:

  • The open water diver who is interested in learning more about nitrox mixtures
  • The open water diver who is interested in extending their bottom time
  • The certified diver who has interest in moving forward with technical diving education

Course prerequisites:

  • Minimum age 18, 15 with parental consent
  • Minimum certification of open water diver or current enrollment in an open water diver course

Students wo take this course are often interested in Advanced Nitrox and Decompression Procedures certifications


Diving is an adventure activity that includes risk to your person. Under New Zealand law we are we required to notify you of the following statement.

You accept that this activity inherently involves risks and potential hazards. The risks and hazards include, but are not limited to breathing compressed gas, marine traffic, marine life, decompression sickness, drowning, barotrauma, air embolism, decompression illness, dehydration, gas narcosis, malfunctioning equipment, ear problems, sun damage, hyperthermia, hypothermia, sea sickness, and adverse weather events.

These activities are run in the outdoors on the ocean, so may be exposed to sudden natural disasters such as, but not limited to Tsunami, Earthquakes, Slips Landslides or Rock Falls, or Volcanic Eruption. I am aware that participating in the activities offered by New Zealand Diving Limited can be hazardous even if they are conducted with care, control, and responsibility. You acknowledge that these risks could result in my injury (physical or mental) or even death.



Please read our terms & conditions found on our website page, frequently asked questions before booking:

Sometimes our activities may have to be rescheduled due to situations outside of our control, such as poor weather. Please note we reschedule in such situations, as described in our terms and conditions.

Overseas participants are advised to carry travel insurance in case rescheduling is unsuitable.

All participants must be of good health and complete a medical declaration. This is available on our website:

All participants must be diving certified to dive on a charter or undergoing a diving course with New Zealand Diving Limited.

All participants must be able to swim a minimum of 200m, unassisted.


Our schedules are available to view when you select the Book Now button below. Alternatively you can contact us and we will send the online codes to you today


This an online theory course with an optional dive element.


Nitrox is designed to help reduce you nitrogen intake and therefore increase your bottom times and surface intervals.

Learn how to use it to your advantage

  • Warkworth, North Island, New Zealand
  • TDI Nitrox Diver
  • Online Theory, optional dive
  • $250

Enquire about a course or charter:

Please complete the form below including the name of Charter or Course you are interested in.