Simple Dive course pathway
Choose Your TDI Gas Blender Course in Melbourne
Compare the two separate TDI gas blender certifications offered by Simple Dive in Blackburn South, then continue to the correct course page for full details and booking.
Two courses, one clear progression
The Nitrox and Advanced Gas Blender certifications are not interchangeable. Most candidates begin with nitrox blending before progressing to helium-based mixtures used in technical diving.
TDI Nitrox Gas Blender
Choose this course if you are beginning formal gas blender training and want to learn how enriched air nitrox is prepared, analysed and documented.
- Minimum age: 18
- No previous gas blender certification required
- Focus: oxygen and nitrogen mixtures for recreational scuba
TDI Advanced Gas Blender
Choose this course when you already hold the required gas blender qualification and want to progress to advanced mixtures containing helium.
- Minimum age: 18
- TDI Nitrox Gas Blender certification or equivalent required
- Focus: advanced nitrox and helium-based trimix mixtures
The Simple Dive gas blender pathway
Quick course selector
Frequently asked questions
Are these two names for the same course?
No. TDI Nitrox Gas Blender is the foundation certification. TDI Advanced Gas Blender is a separate progression course covering advanced mixtures containing helium.
Which course should a beginner take first?
A candidate without an accepted gas blender certification should begin with TDI Nitrox Gas Blender.
Can I book Advanced Gas Blender without the Nitrox certification?
TDI requires Nitrox Gas Blender certification or an accepted equivalent. Contact Simple Dive if you need an equivalency assessment.
Do gas blender courses require scuba dives?
No open-water dives are required. The courses include the relevant theory, practical blending, analysis, logging and assessment requirements.
Where can I see complete course information?
Use the individual Simple Dive product pages for the current course description, prerequisites, pricing and booking options.
Continue to the correct course page
The individual course pages are the authoritative Simple Dive pages for course details and booking.