TDI Nitrox Diver

The TDI Nitrox Diver Course at OCD Divers is the entry point into using enriched air nitrox (EANx) safely and effectively. This course teaches divers how to plan and execute dives using nitrox mixtures from 22% to 40% oxygen, allowing for extended no-decompression limits and reduced nitrogen loading. Whether you want longer bottom times, shorter surface intervals, or a foundation for future technical training, Nitrox Diver is an essential certification.

What You’ll Learn

This course follows TDI standards and covers the essential knowledge and skills for nitrox diving:

Benefits of nitrox: Extended no-decompression limits and reduced nitrogen absorption.
Hazards of nitrox: Oxygen exposure, CNS toxicity, and maximum operating depth (MOD).
Gas analysis: Proper use of an oxygen analyzer and accurate logging procedures.
Cylinder labeling: Marking and identifying nitrox cylinders correctly.
Gas laws and physiology: Partial pressures, oxygen limits, and EAD calculations.
Dive planning: Using nitrox tables and computers for safe depth and exposure management.

Program Overview

Training includes academic development and hands-on nitrox analysis practice. While dives are recommended, they are not required for certification. Students will learn to analyze nitrox mixtures, calculate MOD and oxygen exposure limits, and plan nitrox dives using tables or computers.

Prerequisites:

Minimum age 18, or 15 with parental consent
SDI Open Water Scuba Diver or equivalent

Where Training Takes Place

Training is conducted at OCD Divers in Colleyville. Additional hands-on sessions may be scheduled depending on class size and student needs.

Required Gear

Students must have standard scuba equipment suitable for local conditions. Nitrox cylinders and analyzers are provided for training. If you plan to dive nitrox regularly, we recommend owning your own analyzer for accuracy and convenience.

Gear packages and rental options are available. Visit our continuing education gear options here: Continuing Education Diver Add On Options