Technical diver descending
Technical Diving Tier 2

Tec 45

DECOMPRESSION REFINED

Max Operating Depth 45M / 150FT

Course Overview

The Tec 45 course is the second sub-division of the PADI Tec Deep Diver course. It introduces you to the first stages of full, un-curtailed decompression diving using a single stage cylinder with up to 100% Oxygen.

You will refine your skills in gas switching, station keeping, and deco management, preparing you for the most demanding technical environments.

Who it is for

  • check_circle Certified Tec 40 divers ready to extend their accelerated decompression capabilities.
  • check_circle Divers seeking mastery of single-stage decompression protocols.
  • check_circle Mission-oriented divers requiring longer run times at 45m depths.
verified

Prerequisites

Certification PADI Tec 40 (or equivalent)
Rescue PADI Rescue Diver
Logged Dives 50+ Total
Deep Dives 10+ to 30m
Minimum Age 18 Years
"Tec 45 is the gate to serious deep exploration. Precision in gas switches is the priority."

Outcome & Skills

gas_meter

Accelerated Deco

Learn to utilize 100% Oxygen for significantly reduced decompression times.

precision_manufacturing

Gas Switching

Master the disciplined procedure of switching gases while maintaining depth and trim.

warning

Response Drills

Advanced handling of deco-gas loss and cylinder failures in high-pressure scenarios.

The Expedition Kit

Backmount / Sidemount

Standard double-tank configuration with manifold or sidemount set.

Single Deco Cylinder

7L or 11L (80 cu ft) cylinder O2 clean for decompression gas.

Rigging

Deco stage rigging with high-strength stainless steel hardware.

Software

Desktop deco software for dive planning and table generation.

Phase Breakdown

Deep Theory Master

Planning single-gas decompression profiles and gas optimization strategies.

Skill Refinement

Handling the complexity of a deco cylinder while executing station keeping.

Training Dives 1 - 4

Full open water training dives concluding with a 45m accelerated deco dive.

Safety First

Master the Deco Station

Tec 45 separates the casual explorer from the dedicated technical diver. It demands discipline and focus.

warning PADI Rescue Diver certification mandatory prerequisite.