The TDI Intro to Tech course introduces students to the world of technical diving. This course is designed 

as an introductory course to the TDI Advanced Nitrox course and

the TDI Decompression Procedures Course. 

 The TDI Closed Circuit Rebreather (CCR) Air Diluent Diver Course is your first step into closed circuit rebreather diving and your first truly  quiet dive experience!  sing the latest technology in CCRs can maximize  your gas supply and provide an optimum breathing gas for any depth by maintaining a constant partial pressure of oxygen. It’s like having a  nitrox blending machine on your back! 

 TDI Nitrox Diver Course is an entry-level course for divers wishing to continue their diver education and utilize enriched air nitrox as a  breathing gas to extend no decompression limits at depth. 

TDI Technical Diver 1 includes both TDI Advanced Nitrox and TDI Decompression Procedures.

The TDI Advanced Nitrox Course qualifies divers to use enriched air nitrox from EAN 21 through EAN 100 percent. Taught in conjunction with the TDI Decompression Procedures Course, you will be qualified for planned staged decompression diving. With a maximum operating depth of 45 meters/150 feet, this course is your first step beyond the normal sport diving limits. These two courses can be considered the foundation of your technical diving career. TDI Advanced Nitrox is also a must for SCR or CCR divers.

 Are you looking to expand your depth range? Do you want to reduce narcosis during deep dives? The TDI Trimix Diver Course could be your next step! As your motivation to explore progresses, you will find that you may want to go deeper to dive into that wreck that is part of history or that cave system that you have read so much about. Unfortunately, one of the major limiting factors of going deeper is narcosis; TDI’s Trimix Diver course shows how to minimize the effects of narcosis by adding helium to offset the nitrogen in your breathing gas. 

 Are you looking to expand your dive time? Maybe you’re a scientific  diver or photographer looking to stay in the water a little longer?The  TDI Advanced Nitrox Course qualifies divers to use enriched air nitrox  from EAN 21 through EAN 100 percent within your current certification  level to a maximum depth of 40 metres/130 feet during dives that do not  require staged decompression. Often taught in conjunction with the TDI  Decompression Procedures course, this can be considered the foundation  of your technical diving career. TDI Advanced Nitrox is also a must for  SCR or CCR divers. 

 Are you finding your no-decompression limits (NDLs) a limiting factor to dives? Do you have to ascend sooner than you would like? As sport divers, planned decompression is not something that we do or have been taught.The TDI Decompression Procedures Course prepares you for planned staged decompression diving. With a maximum operating depth of 45 meters/150 feet, this course is your first step beyond the normal sport diving limits. 

 Are you an experienced dive instructor and passionate technical diver, and do you want to join the ranks of some the top technical diving instructors in the world? Get started with a TDI Instructor Course. Starting at the entry levels, you will learn the fundamentals skills, requirements and be evaluated on proper techniques for conducting technical diver courses. As you gain teaching and diving experience, you will qualify to enter higher level instructor programs.