More people are diving with enriched air, Tec diving is also becoming main stream so this means the demand for enriched air fills and helium mixes is also increasing.

However, there needs to be someone qualified to administer these fills to meet this demand. This is where the PADI Gas Blender and TDI Gas Blender courses come in.

It can result in certifications: PADI Gas Blender, PADI Trimix Blender, TDI Nitrox Blender or TDI Trimix Blender.

What You'll Learn

The Gas Blender courses will train you as a qualified gas blender, allowing you to provide gas mixes to appropriately certified consumers.

You'll learn the physical properties of oxygen and helium, its associated hazards, handling requirements and what cleaning equipment is necessary. Finally, you will learn the five methods of obtaining the desired enriched air nitrox mix and the various methods used to obtain proper helium mixes.

The Learning Materials You'll Need

What are the four main types of oxygen? What is oxygen clean? What are the five methods for blending Enriched Air? How to mix helium with O2 and air to go to deep depths. These questions and more are covered in the Gas Blender manuals from DSAT and TDI.

As a gas blender you must be familiar with the physical properties of oxygen, its various forms and purities, hazards and special handling requirements. The Gas Blender Manual and CD-ROM, in conjunction with your instructor, will familiarize you with the procedures and techniques needed for gas blending.

TDI Advanced Nitrox

The TDI Advanced Nitrox Course qualifies divers to use enriched air nitrox from EAN 21 through EAN 100 to a depth of 40 metres 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.  Advanced Nitrox is also a great course for those wanting to extend their bottom times in shallower depths such as scientific diver, and a must for SCR or CCR divers.   The course cover topics like

• Equipment requirements
• Dive planning
• Oxygen tracking
• Blending methods

You will use the TDI Advanced Nitrox Diving manual for your course, which explains in an easy to understand practical manner the complex information that Advanced Nitrox divers need to know.

The Decompression Procedures course can be run side by side with Advanced Nitrox course for maximum benefit.

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 45m/150 feet, this course is your first step beyond the normal sport diving limits. Your TDI Instructor will provide you with valuable information and skills, among the topics covered are..

 ( This is the DSAT chart from zero to hero of Tec diving. This will turn you into the ultimate Tec Diver once you have completed each course to Tec Trimix Diver) 

• Kit set-up
• Equipment requirements
• Decompression techniques
• Decompression breathing gases
• Gas management
• Contingency planning

TDI Decompression Procedures

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 45m/150 feet, this course is your first step beyond the normal sport diving limits. Your TDI Instructor will provide you with valuable information and skills, among the topics covered are

• Kit set-up
• Equipment requirements
• Decompression techniques
• Decompression breathing gases
• Gas management
• Contingency planning

The TDI Decompressions Procedures course combined with the TDI Advanced Nitrox course form the foundation of all other technical courses.  After these two courses and some additional experience, the stage has been set for you to move onto additional technical levels. Some of the materials you will be using include the TDI Divers Guide to Decompression Procedures, US Navy or Buhlmann Air Decompression Tables.

Normally if you have combined this course along with Advanced Nitrox you will be ready to move onwards and downwards to Extended Range diving course to take you below the 50m zone!!!

Certain areas of the world provide spectacular dives at depths deeper than 39m/130 feet but you will not have access (or very limited access) to helium. The TDI Extended Range course teaches you the proper techniques for utilizing compressed air as a breathing gas and with a maximum depth of 55m/180 feet you won’t have to miss those dives. The Extended Range course will cover topics and skills such as

• Equipment requirements and configuration
• Decompression options
• Use of surface marker buoys
• Buddy rescue
• Narcosis checks and management

TDI Extended Range

Certain areas of the world provide spectacular dives at depths deeper than 39m/130 feet but you will not have access (or very limited access) to helium. The TDI Extended Range course teaches you the proper techniques for utilizing compressed air as a breathing gas and with a maximum depth of 55m you won’t have to miss those dives. The Extended Range course will cover topics and skills such as

• Equipment requirements and configuration
• Decompression options
• Use of surface marker buoys
• Buddy rescue
• Narcosis checks and management

Materials for this course include the TDI Extended Range Diving Manual and the US Navy or Buhlmann Air Decompression Tables.

This is the course that double tanks were made for you to get into the deep zone!! All divers must wear black.