The SDI Computer Nitrox course is a great next step after the Open Water Diver certification and is structured in an easy to understand manner by making use of a Nitrox programmable computer. Nitrox is a breathing gas that has a lot of benefits for both new and experienced divers. The course will cover the use of Nitrox mixtures from 22 to 40 percent oxygen. The benefits of using Nitrox include: 

• Increased safety margins
• Reduced post dive fatigue
• Extended no-decompression times