Deco 60 Normoxic Training

The RAID Normoxic Decompression Diver program represents the highest level of RAID’s normoxic open-circuit technical diving pathway before progressing to hypoxic trimix. Designed for experienced decompression divers, this course develops the skills, knowledge, and mindset required to safely conduct complex decompression dives to a maximum depth of 60 metres (200 feet).

Building on the foundations established during Advanced and Extended Decompression training, you’ll learn to plan and execute dives using air, nitrox, oxygen, and normoxic trimix, with decompression optimized through the use of up to three decompression gases. RAID standards require trimix to be planned with an Equivalent Narcotic Depth (END/EAD) not exceeding 30 metres (100 feet), ensuring greater clarity, reduced narcosis, and improved diver performance during deep dives.

Throughout the course, you’ll further refine advanced buoyancy control, trim, propulsion techniques, gas management, emergency procedures, decompression discipline, and team communication. Every dive is carefully planned, thoroughly briefed, and professionally debriefed, allowing you to build confidence through structured, performance-based learning.

At Thai Ocean Academy, our experienced RAID Technical Instructors focus on producing competent technical divers—not simply issuing certifications. With small class sizes and individual coaching, every student is challenged to achieve a consistently high standard of precision, awareness, and decision-making before progressing.

Whether your goal is exploring deep wrecks, participating in expedition diving, or preparing for RAID Hypoxic Trimix training, the Normoxic Decompression Diver program provides the knowledge and practical experience required to safely undertake advanced technical dives