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TriOx Diving

TriOx Divings Extending the depths of your diving!

Recreational TriOx


Recreational TriOx is the appropriate diving gas for those interested in exploring depths beyond the 120-foot/ 35-meter mark. Using Nitrox with a slight addition of Helium (20-30%), diver can now explore deeper depths with amazing mental clarity, reduced stress and control.

Helium added to the mix displaces the total amount of the narcotic Nitrogen present in conventional Air and Nitrox. TriOx is easily produced on demand with the latest NitroxMaker by adding the TriOx option with the appropriate amount of stored Helium. TriOx diving is a step into full TriMix (40%+ He / 20% or less O2). TriOx diving is typically done with a single set of back mounted tanks and does not require side-mounted “stage” bottles demanded by full Trimix.

TriOx Diving
TriOx Diving


The Recreational TriOx course is a no decompression class structured to prepare divers for deeper recreational diving using proper equipment, diving techniques, and breathing mixtures. In this class, students will be introduced to the theory and practice of decompression and schooled in correct ascent procedures.

Recreational TriOx training focuses on expanding the fundamental skills learned in the GUE Fundamentals course (or elsewhere) and is designed to cultivate, integrate, and expand the essential skills required for safe deeper diving. This will include problem identification and resolution, and building the capacity for progressively more challenging diving. In this class, students will be trained in: a) the use of single or double back gas tanks/cylinders and in the potential failure problems associated with them; b) the use of Nitrox and TriOx for extended bottom times; and c) the use of Helium to minimize narcosis, CO2, gas density, and post-dive "nitrogen stress."


1. Must meet GUE General Course Prerequisites as outlined in Section 1.6
2. Must be a minimum of 18 years of age
3. Must have taken the GUE Fundamentals or a GUE Cave, Tech, or Rebreather class
4. Must have a minimum of fifty (50) dives beyond open water qualification, twenty-five (25) of which should be non-training dives
5. Must be able to swim a distance of at least 50 feet/15 meters on a breath hold
6. Must be able to swim at least 300 yards/275 meters in less than 14 minutes without
stopping. This test should be conducted in a swimsuit and, where necessary,
apropriate thermal protection.


The GUE Recreational TriOx class is normally conducted over a 3-day period. It involves a minimum of thirty (30) hours of instruction, encompassing both classroom and in-water work.

Contact Us for more Brownie's TriOx Diving information.