The Equipment Service Technician Manual is the text-book literary assistant to the TDI Equipment Service Technician certification course. This course will give an in-depth description of various topics regarding the handling of oxygen and system design, different blending methods, and finally oxygen cleaning practices.

The Nitrox Gas Blending is the text-book literary assistant to the TDI Nitrox Gas Blending certification course. This course will grant each student with an in-depth knowledge of various topics regarding the use, and preparation, of various diving gases used within the scuba environment. Detailed chapters include information on scuba gases, oxygen handling & system design, blending techniques, gas mixing mathematics, and finally mixing charts and various necessary mathematical formulas.

The Nitrox Manual is the text-book literary assistant to the TDI Nitrox certification course. In many respects, nitrox is just a tool that can make your diving more enjoyable. Similar to an additional piece of equipment, once you have completed this TDI course and logged your first few nitrox dives, you will understand what a valuable tool it is. Nitrox will add useful options and flexibility to your dive planning and execution.

Using the Nitrox Manual as a reference, students may utilize the Knowledge Quest Work Booklet by answering the provided questions with the most appropriate and accurate answers. The Knowledge Quest is designed to be used as an assessment for enrolled students and their respective instructors.

The Advanced Nitrox Manual is the text-book literary assistant to the TDI Advanced Nitrox certification course. This TDI course will help develop the mindset and practical skills necessary to optimize Nitrox breathing mixtures for divers. After completing the course, participants will be able to make choices based on operational and logistical concerns in order to best suit their mission parameters and personal needs. The Advanced Nitrox course is the first step in taking scuba beyond the usual sport-diving applications.

Using the Advanced Nitrox Manual as a reference, students may utilize the Knowledge Quest Work Booklet by answering the provided questions with the most appropriate and accurate answers. The Knowledge Quest is designed to be used as an assessment for enrolled students and their respective instructors.