The SSI Extended Range Nitrox course provides you with a thorough introduction to the concepts, techniques and procedures required when planning decompression dives with Nitrox. It prepares the diver to plan and execute dives with decompression limits to a maximum depth of 40 meters using a dual XR unit. In addition, this advanced Nitrox course teaches you the techniques and procedures for using breathing gases up to 100% oxygen for decompression.