TDI, which stands for Technical Diving International, offers a range of courses for divers interested in exploring the world of technical diving. Here are some key details about TDI courses:

1. Advanced Nitrox: The Advanced Nitrox course focuses on the use of enriched air nitrox blends with oxygen percentages greater than the typical recreational diving limits. Divers learn how to plan and execute dives using higher oxygen content for extended bottom times within recreational dive limits.
2. Decompression Procedures: This course expands divers’ understanding of decompression theory and techniques. Participants learn how to plan and execute staged decompression dives using multiple gas mixtures and decompression tables or dive computers.
3. Extended Range (ERD): The Extended Range course enables divers to extend their depth and time limits beyond recreational diving. It covers advanced gas planning, decompression procedures, and the use of multiple decompression gases.
4. Trimix: The Trimix course introduces divers to the use of helium-based breathing mixtures, known as trimix, which allow for safe and efficient diving at greater depths. Participants learn about gas planning, decompression procedures, and managing the physiological effects of helium.
5. Advanced Trimix: Building upon the Trimix course, the Advanced Trimix course further develops divers’ knowledge and skills for deep, mixed-gas dives. It covers advanced dive planning, the use of multiple stages, and managing complex decompression profiles.

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