TDI Advanced Nitrox Course

What will you learn?

Divers Edge Diver after a technical dive on the Empress of Ireland

If you’ve completed your enriched air nitrox course and have been enjoying the benefits of longer bottom time, you’re probably thinking you’d like to stay down even longer as the bottom times on deeper dives are still too short.

Learn the benefits of choosing the right gases for deeper diving and learn how to benefit from the utilization of a hyperoxic decompression and start your journey into technical diving.

TDI Advanced Nitrox  can be considered the foundation of your technical diving career.

Advanced Nitrox is also a great course for those wanting to extend their bottom times in shallower depths such as scientific diver, and a must for SCR or CCR divers.


Enriched Air Nitrox (easy or computer based nitrox courses are not  acceptable)
30 Logged Dives Minimum
Physically Fit
Comfortable in the water
NAUI Intro to Tech

How can you enroll?

You can sign up for this course as part of online learning with eLearn by going to the TDI website and selecting Divers Edge as the facility you’ll be training with.

You can also come in and pick up the student manual and register in store.


This course can be completed as a stand along specialty course, or as a combination course.

Group & Private Instruction are viable options which may be completed both locally and away. We will teach this class anywhere you need us.

Call, email or visit the store for dates and details.

Training Agency:


Additional Details:

Topics covered include:

  • Equipment for Technical Diving
  • Advanced Dive planning
  • Oxygen tracking of CNS O2 %
  • Pulmonary Oxygen Toxicity Tracking
  • Gas Blending methods
  • Team Diving

You’ll be using the TDI Advanced Nitrox Diving manual for your course, which explains in an easy to understand practical manner the complex information that Advanced Nitrox divers need to know.

Advanced Nitrox diving allows divers to use higher fractions of oxygen to eliminate inert gas from the diver’s blood and tissues at a more efficient rate than decompressing on back gas.

Our TDI Advanced Nitrox Course gives students the tools to handle various Nitrox mixes from 21-100% safely preparing them for dives requiring staged decompression. Students will learn a great deal about the Physics and Physiology behind the gasses involved in this course and gain extensive academic knowledge that was started during their journey through basic nitrox.

More Advanced Concepts such as Decompression Theory with regards to dissolved, free phase and dual phase gas models are discussed, as well as emergency procedures, advanced dive planning, additional breathing alternatives and more.

This course is often combined with a our TDI Decompression Procedures Course or NAUI Technical Decompression Diver Course.

Graduates can enroll in the NAUI Helitrox Diver Course upon successful completion of this program, allowing students to dive safer and deeper using Helium Based mixes to a maximum depth of 150′ staying within no stop limits unless tech certified.

If you are interested in this course send us an email and we can give you an information package including a CD and more.

Cost: $495+HST includes TDI Advanced Nitrox manual.

Course Bundles are also available:

$799+HST as combination with TDI Decompression Procedures or NAUI Helitrox Diver.

Technical Diver Level 1 Package  $1200+HST.

What gear will you need?

Technical Diver setup with double tanks, decompression bottle (properly rigged with MOD).  Gear is to be Simple and Streamlined, complying with equipment configuration requirements.  A full gear list will be given to all candidates.

Where do I go from here?

Here are some popular examples of courses commonly taken by graduates of this course:

  • TDI Decompression Procedures Course
  • NAUI Technical Decompression Diver
  • Helitrox
  • Technical Wreck Penetration
  • Cave1
  • Cave 2
  • Trimix Level 1
  • Advanced Trimix
  • Extreme Exposure Trimix