This course examines strategies for accelerated decompression. You are presented with the option of multiple Nitrox blends and the use of 100% oxygen. You will learn advanced ppO2 management procedures to control CNS toxicity dose. Training dives are conducted to depths as deep as 180 fsw and two gasses are used for stage decompression.

Prerequisits: minimum 18 years old, minimum 75 logged dives, certification in Deep, Stress & Rescue, Enriched Air Nitrox and additionally certification in Navigation or Cavern, Advanced Open Water Diver, Oxgen Provider, certification in Decompression Procedures or Normoxic Trimix plus 10 logged Air- or optimized EAN Nitrox Dives or normoxic Trimix Dives which were done by the use of a Stage ( EAN50 ), these dives should have been in depth ranges from 24m to  ­54m