PADI Tec Trimix Diver

Course Overview & Training Objectives

PADI Tec Trimix Diver trains advanced technical divers for deep open-circuit exploration down to 90m (295ft). The course covers the physics and physiology of hypoxic bottom gases that are unbreathable at the surface, mandating off-board travel gas deployment. Students execute complex multi-gas profiles involving hypoxic switches, isobaric counterdiffusion prevention, and multi-stage decompression obligations.

Operational Envelope

• Max Depth: 90m (295ft)
• Decompression: Unlimited accelerated deco
• Breathing Gases: Hypoxic Trimix (<18% O2); designated travel gas and multiple decompression stages (up to 100% O2)
• Equipment Rig: Manifolded Twinset or Sidemount + 3+ Deco Stages

Course Structure & Training Requirements

• Course Duration: 5 to 7 Days
• Required Training Dives: 6 in-water dives
• Classroom & Theory: 20 hours instruction

Entry Gates & Prerequisites

Tec 50 or Tec 65 + Rescue Diver + 150 logged dives