TDI Advanced Blender builds on Nitrox Gas Blender training and adds the preparation and blending of oxygen- and helium-based gases for technical diving. The official TDI page explains that successful graduates may engage in blending oxygen and helium based gases, including high-quality nitrox and trimix. This is fill-station training for people who need accurate calculations, clean procedures, and a strong respect for oxygen and helium handling.
The course is for dive shop staff, gas blenders, and divers who already understand nitrox blending and want to progress into advanced gas production. TDI lists minimum age 18 and proof of certification as a TDI Nitrox Gas Blender or equivalent as prerequisites. It suits people supporting technical diving where trimix, nitrox, oxygen handling, analysis, and documentation all need to be consistent.
Training covers gas blender responsibilities, air, oxygen, nitrogen, oxygen hazards, fire prevention, oxygen system design, local regulations, gas production equipment, compressors, cylinders, filtration systems, gauges, mixing techniques, continuous blending, de-nitrogenated air, premix, partial-pressure blending mathematics, oxygen analysis, cylinder handling, and sign-out. In High Springs, Florida, it is valuable for technical diving support operations. Successful students must demonstrate proficiency by blending and analyzing required nitrox and trimix cylinders.
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