Advance Nitrox

What is it?

This course examines the use of EAN 21 through 100% (oxygen) for optimal mixes to a depth of 130fsw/40msw. The object of this course is to train divers in the benefits, hazards and proper procedures for utilizing EAN 21 through 100% (oxygen) for dives not requiring staged decompression. (Decompression techniques may be combined with this course at the discretion of the instructor). 4 Dives (6 total if combined with deco)

What will we do? (Overview)

  • Physics
  • Physiology
  • Formula Work
  • Equipment Considerations
  • Dive Computers & Tables
  • Dive Planning
  • Common Mixing
  • Decompression

Open Water Skills:

  • Properly analyze gas mixtures
  • Demonstrate adequate pre-dive planning; Limits based on personal gas consumption, limits based on O2 exposure at planned depth, limits based on nitrogen absorption at planned depth with actual mix

How long will it take?

  • Classroom/Briefings- Approximately 3+ hours
  • Open water dives- 4 (with a minimum accumulated bottom time of 100 minutes).


  • Min age 15 unless taught in conjunction with TDI Decompression Procedures, then the minimum age is 18
  • Nitrox Certified
  • 25 logged dives

Equipment Needed:

  • Alternate second stage (octo) attached to a primary regulator or a redundant scuba unit (13cuft minimum)
  • Submersible pressure gauge
  • Depth gauge and automatic bottom timer and/or dive computer
  • BCD with power inflator
  • Exposure suit adequate for the open water environment (dry suit preferred)
  • Tank (80cft min) and regulator properly labeled and cleaned as required for EANx mixtures
  • Access to an oxygen analyzer (instructor may supply)
  • Reel/Spool with 150 ft. minimum line
  • Lift bag/Surface Marker Buoy (100 lb min lift)
  • Cutting Device

Price Include:

  • E-Learning
  • Certification
  • Gases
  • 2 tank boat

Students are responsible for: *

  • All Equipment to include tanks

* Traveling to Honolulu or missing equipment? Discuss with your instructor.

Price: $659

Combine Advance  ENx & Deco Procedures:$1139