Photo by Teemu Virtanen · CC BY-SA 3.0
OC Tech (45m)Generic
Helitrox (45m)
Last updated September 7, 2026
Introduces helium into the gas mix at moderate depth (45 m) to reduce narcosis without the full complexity of deep trimix diving — a common stepping stone between air/nitrox decompression diving and true trimix.
No instructors or dive centres found offering this course.
We're still building out the directory country by country, so this list isn't every instructor or dive centre teaching it in the world — more locations are coming soon.