Nitrox Diver Course – Dive Longer, Safer & Smarter
Nitrox Introduction Videos
Why Take a Nitrox Course in Koh Chang?
The Nitrox Diver Course in Koh Chang is one of the most valuable specialty certifications for recreational divers in Thailand. Using enriched air nitrox (EAN32 or EAN36 with up to 40% oxygen), you'll significantly reduce nitrogen buildup, extend your bottom time, and enjoy shorter surface intervals between dives. This makes Nitrox diving perfect for multi-day diving trips in the Mu Koh Chang National Marine Park, especially when exploring deeper dive sites like the HTMS Chang wreck at 30 meters or doing 2-3 dives per day on Koh Chang's vibrant reefs.
Our Nitrox certification course in Thailand is taught by experienced SDI, TDI and PADI certified instructors and takes just 1-2 days to complete. The course includes comprehensive theory covering oxygen toxicity, maximum operating depth (MOD) calculations, CNS tracking, and proper gas analysis procedures. You'll learn how to analyze Nitrox tanks, set your dive computer for enriched air, and plan safer repetitive dives. Two optional training dives allow you to practice using Nitrox in real diving conditions in the Gulf of Thailand. Whether you're planning extended diving holidays, underwater photography sessions requiring longer bottom times, or preparing for technical diving courses like Advanced Nitrox and Decompression Procedures, this enriched air specialty course is your essential first step.
Ready to dive longer and safer? Learn more about the benefits of Nitrox diving:
→ Read our Complete Nitrox Guide
What You’ll Learn
- ✅ Benefits and limitations of Nitrox diving
- ✅ Oxygen exposure, MOD, and CNS calculations
- ✅ Tank labeling, analyzing & gas management
- ✅ How to set your dive computer for Nitrox
Thinking About Technical Diving?
If you’re planning to go deeper into the world of technical diving, the Nitrox Diver Course is your first essential step. It’s a prerequisite for the TDI Advanced Nitrox Course, which allows you to use up to 100% oxygen and opens the door to decompression and extended range diving.
Complete your Nitrox certification now and you’re halfway to becoming a tech diver!
Your Options
- Full Nitrox Certification: Online theory (0.5 day) + analyzer & tank labeling workshop + optional 2 Nitrox dives (total: 1 day)
- Adventure Dive (Nitrox): 1 day, 2 dives (includes 1 Nitrox tank onboard, theory briefing & documentation sheet – counts toward AOWD if completed within 12 months)
Online theory access included (PADI PDF Manual or SDI eLearning)
? Not sure which option is right for you? → See how specialty courses work at Chang Diving
Requirements
- Agency: SDI (age 10+) or PADI (age 12+)
- Prerequisite: Open Water certification or combine with OWD course
- Dives: 0 required, 2 optional included
- Duration: 0.5–1.5 days depending on dive add-on
What’s Included
- Access to SDI eLearning or PADI PDF manual
- Oxygen analysis & cylinder labeling workshop
- Pre-dive Nitrox briefing and theory recap
- Optional: 2 open water dives with Nitrox (40%)
- Certification card upon successful completion
- Rental gear and Nitrox tank(s) included
- Optional: Dive Insurance available for extra safety
Already certified in Nitrox? Take the next step with our Advanced Nitrox Diver Course and start your journey into technical diving (up to 100% O₂).
What can you discover?
Join our fun dives and explore vibrant coral reefs, fascinating critters, and majestic marine life — including the legendary HTMS Chang Wreck.
Use our dive site map to plan your adventure or dive deeper into our Marine Life Guide and see what awaits below the surface.
What other divers discovered
Real reviews and experiences from our guests – see what others found on their diving adventures with us!
Ready to Dive Smarter?
This is one of our most recommended specialties. Maximize your time underwater and reduce post-dive fatigue – all with a simple gas switch!
- ✅ Smart, safe diving practices
- ✅ Ideal for wrecks, multi-day dive trips, or liveaboards
- ✅ Boosts your dive profile toward the Master Scuba Diver rating
SDI with Dives
💸 7,990 THB
Full Nitrox certification + practical dives
SDI Theory Only
💸 4,990 THB
eLearning + certification without dives
PADI with Dives
💸 9,990 THB
Full Nitrox certification + practical dives
PADI Theory Only
💸 5,990 THB
eLearning + certification without dives
Book now and choose your training agency below!
📩 Book NowSee More, Stay Longer
With Nitrox, you’ll extend your time exploring sites like the HTMS Chang, meet more marine life, and reduce surface intervals between dives. It’s a win-win.
Important Safety Notice:
Nitrox requires precision and planning.
Do not use cannabis before or during Nitrox dives.
No Drugs – Dive Smart, Dive Safe!
