TDI Advanced Nitrox Diver

Course Overview & Training Objectives

TDI Advanced Nitrox Diver qualifies technical divers to utilize enriched air nitrox mixtures from air up to 100% oxygen within a maximum depth of 40m/130ft for non-stop and planned staged decompression diving (often paired with Decompression Procedures). Divers study oxygen toxicity, gas consumption (SAC/RMV), cylinder oxygen cleaning requirements, and stage bottle rigging. The course introduces accelerated decompression strategies and rigorous equipment labeling.

Operational Envelope

• Max Depth: 40m (130ft)
• Decompression: No decompression
• Breathing Gases: EANx21 up to 100% pure oxygen for stage/decompression use
• Equipment Rig: Single + Stage or Double

Course Structure & Training Requirements

• Course Duration: 2 to 3 Days
• Required Training Dives: 4 in-water dives
• Classroom & Theory: 6 hours instruction

Entry Gates & Prerequisites

Min age 12