Learn enriched air diving, extend bottom time and improve dive safety with expert instructors.
TDI Nitrox Course – Phuket, Thailand
Extend your dive time, reduce fatigue, and improve your underwater experience with the TDI Nitrox (Enriched Air Diving) course in Phuket, Thailand. Learn how to safely use enriched air nitrox and take full advantage of longer bottom times on your dives.
The TDI Nitrox course is one of the most popular scuba diving specialities and is an essential step for divers who want to get more from every dive—whether recreational or technical.
What Is the TDI Nitrox Course?
The TDI Nitrox course teaches divers how to safely use enriched air nitrox (EAN) — a breathing gas containing a higher percentage of oxygen than regular air.
By increasing oxygen and reducing nitrogen, nitrox allows you to:
- extend no-decompression limits
- reduce nitrogen absorption
- shorten surface intervals
- increase overall dive efficiency
This course qualifies you to dive using nitrox mixes up to 40% oxygen.
Why Dive with Nitrox?
Diving with nitrox offers real, noticeable benefits—especially in a location like Phuket where multiple dives per day are common.
Key Advantages:
- Longer bottom times on repetitive dives
- Reduced fatigue after diving
- Shorter surface intervals between dives
- Safer dive profiles with reduced nitrogen loading
For many divers, nitrox quickly becomes the preferred way to dive.
Why Take Your Nitrox Course in Phuket?
Phuket is one of the best places to learn nitrox diving:
- Warm, clear water
- Multi-dive days ideal for nitrox use
- Boat diving to local reefs and wrecks
- Real-world conditions to apply your training
Learning nitrox in Phuket means you can immediately experience its benefits during your dives.
Who Is This Course For?
The TDI Nitrox course is ideal for:
- newly certified divers wanting to improve safety
- experienced divers doing multiple dives per day
- underwater photographers
- divers planning liveaboards
- anyone preparing for advanced or technical diving
What You Will Learn
The course covers both theory and practical knowledge required to safely use nitrox.
Theory Topics Include:
- Oxygen exposure and limits
- Nitrogen absorption and dive planning
- Equivalent Air Depth (EAD) calculations
- Maximum Operating Depth (MOD)
- Nitrox dive tables and computer use
- Analyzing gas mixtures
- Cylinder marking and labelling
Unlike many entry-level courses, the TDI Nitrox course includes real-world application:
- analyzing nitrox cylinders
- setting up dive computers for nitrox
- planning dives using nitrox
- understanding oxygen limits in real scenarios
Some programs can be completed without dives, but training dives are recommended to fully understand nitrox benefits.
Course Prerequisites
To enrol in the TDI Nitrox course, you must:
- Be at least 15 years old
- Hold an Open Water Diver certification (or equivalent from another recognised agency)
Typical course duration
Flexible scheduling is available in Phuket.
- Half day to 1 day (theory + practical)
- Optional open water dives
What Comes After the TDI Nitrox Course?
Completing the TDI Nitrox course opens the door to:
- Sidemount Diver
- Advanced Nitrox
- Decompression Procedures
- Technical diving courses
- CCR rebreather training
Nitrox is the foundation for almost all advanced diving.
Why Choose Us for Your TDI Nitrox Course?
- Experienced instructors
- Flexible scheduling
- Real-world dive application
- Small groups for personalised training
- Pathway into technical diving
We don’t just teach theory—you’ll understand how to use nitrox confidently on real dives.
Contact Us
Have questions or need help? Use the form to reach out and we will be in touch with you as quickly as possible.