The TDI Nitrox course is a very flexible system. It can be taught in traditional classroom, take-home or even lecture-demonstration. The course time requirements are approximately 4 hours. Although the instructor may want to make dives to keep student interest high, and they are certainly recommended, this course is complete and does not require dives for successful completion.

The material must be completed with the reviews and final exam. The practical portion of the course centres around Nitrox analysis and logging. Dive planning is also included in the practical session. If any students have Nitrox dive computers, there should be additional practice in using them for both planning and diving.

This is the entry-level certification course for recreational divers wishing to utilize enriched air Nitrox (EAN) as a breathing gas. The objective of this course is to train divers in the benefits, hazards, and proper procedures for using Nitrox mixes from twenty two (22) to forty (40) percent oxygen content.

Qualifications of Graduates

Upon successful completion of this course:

• Graduates may engage in diving activities utilising EAN 22 to EAN 40 without direct supervision.
  

Graduates would be qualified to enrol in:

• TDI Advanced Nitrox Course.
  
• TDI Decompression Procedures Course.
  
• TDI Semi-closed Rebreather Course.
  

Student Pre-Requisites

The student must:

• Be a minimum age of fifteen (15).
  
• Have a Minimum certification of Open Water Diver or current enrolment in an Open Water Diver course.
  

Required Subject Areas

The TDI Nitrox Manual is mandatory for use during this course but instructors may use any additional text or materials that they feel help present these topics. The following topics must be covered during this course:

• History of Enriched Air Nitrox (EAN)
  
• Physiology
  
  • Oxygen.
    
  • Nitrogen.
    
• Physics
  
  • Pressure review.
    
  • Partial pressures.
    
• Equipment Considerations
  
  • Forty (40) percent oxygen content and less.
    
  • Above forty (40) percent oxygen content.
    
• Dive Tables
  
• Equivalent Air Depth (introduction of concept only for demonstration).
  
• EAN Tables.
  
• Switching mixes on repetitive dives.
  
• Dive Computers
  
  • Mix adjustable.
    
  • 02 integrated.
    
• Advantages and Disadvantages of EAN
  
  • Use as air for physiological advantage with air tables or computers.
    
  • Use to extend no-decompression bottom times or shorten surface intervals.
    
  • Oxygen toxicity hazards and depth limits.
    
  • Discussion of myths and facts regarding EAN mixtures.
    
• Procedures
  
  • Use and theory of oxygen analyser.
    
  • Gas analysis and logging.
    
• Common Mixing Procedures
  
• Partial pressure blending.
  
• Continuous blending.
  
• Membrane separation system.
  

There is an additional fee for certification and manual see price list. Also if more than one TDI course is booked for consecutive attendance and paid for in advance a 10% discount will apply to the total course costs (excluding certification fee and materials).

Please also remember to bring your GP signed medical with you (form available on website).

Please also check out our terms and conditions, packages available, price list, and the medical statement from the booking pack or from our website, and feel free to ask any questions you may have.