This course focuses on the practical information a diver needs to know to safely use oxygen enriched air. It reviews gases, the concept of partial pressure, oxygen physiology, as well as oxygen limits and tolerance techniques. In addition, students will learn dive planning, proper mixtures for specific depths, use dive tables to manage no-decompression limits, and demonstrate how to obtain and analyze a tank of enriched air. This private class is available for those whose schedule demands a more flexible time frame and can be completed during the day or on the weekend.