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Course Summary:  Nitrox is an often misunderstood gas. Most students (myself included) initially believe that Nitrox is for deep diving. Actually, nitrox is simply gas with higher amounts of oxygen that is used at recreational depths. The higher level of oxygen (and lower nitrogen) allow divers to stay underwater longer and have shorter surface intervals.

In this course, divers will learn how to use nitrox mixtures from 22% to 40%, though 32% and 36% are most common. This is also a chance for divers to learn more about diving gasses in general and why certain gasses are used for certain purposes.

Dives are recommended, but not required for this certification. There is study, a test, and practice with testing gas for amount of oxygen. Students may also do two dives with the instructor in which they will do the actual dive planning and gas testing.

Duration:  With a bit of study beforehand, this course can easily be done in one day, including dives. Another option is to meet one evening over beers or wine to go over the classwork and do the test. Dives, if desired, can be done another day.

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Course Summary:  This is an ideal course for those who are interested in learning more about double tanks, decompression and technical diving. An entry level technical course, advanced nitrox is serious fun for those who have solid scuba skills and are ready to take them to the next level.

There is some significant knowledge development, a day or more of confined water work, and four required dives.

Duration:  5 days in the water, possibly as little as 3 weekends.