TDI Advanced Nitrox

Course duration: Two days

Prerequisites: 18 years old (15 with parental consent), TDI Nitrox Diver or equivalent, show proof of 25 logged dives, complete the RSTC medical form

Course cost (includes instruction, manual and certification costs): £300 per participant. Not included are site entry, equipment hire and gas.


Course description: This two day course (including 4 dives totalling a minimum of 100 minutes) picks up from the Nitrox course and takes an in-depth look at the physics and physiology relating to diving with gas mixes from 41% to 100% oxygen, gas planning, dive tables, dive computers, oxygen limitations, nitrogen limitations, equipment selection, cylinder labeling, nitrox analysis, oxygen servicing ratings and gas blending procedures.

Upon successful completion of this course, divers can dive with gas mixes up to 100% oxygen to a maximum depth of 40m during dives that do not require staged decompression.  This course is often taught in conjuction with the TDI Decompression Procedures course. Please see our Decompression Procedures course page for this option.

03 Pike1_small

Course scheduling: The TDI Advanced Nitrox course can be scheduled over any two days where we are at a dive site, such as Wraysbury, the National Diving and Activity Centre, Vobster or Divers Cove.  For dates, see our calendar page or if you don’t find a suitable date there, email us at

How do I book?  Please contact us on or on 07792 723 938

Digital Camera