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Nitrox Divers

Enriched Air Nitrox

“EAN Nitrox” is defined as a mixture of nitrogen to oxygen in which the concentration of oxygen is greater than that found in air. Diving with Nitrox will increase your safety underwater, increase your bottom time, and reduce the fatigue that accumulates with multiple dives. You will learn all the necessary rules for planning dives with Nitrox and using Nitrox in a safe way. An important key point in the entire program is analyzing your own tank prior to any Nitrox dive.

We offer SSI, SDI, and TDI Nitrox Courses. All student materials can be accessed online. Through interactive learning, you can complete the required academic study and homework at home, and then come to class for the academic review and practical application sessions.


SSI Nitrox

SDI Nitrox

TDI Nitrox

Minimum Age: 10 years old 18 years old 18 years old
Tuition: $140
$100 if taken with OWD Course
$140 $140
Course Materials: $90 online
Issued by Denver Divers
$119 online
Purchase at SDI Online
$129 online
Purchase at TDI Online

Required Documents:


  • 3 hour classroom session, including custom computer tutorial
  • Free use of nitrox analyzer
  • Free nitrox tank for use at a local dive destination

Please note: If you need to cancel your class and have already paid in full, we are able to issue a refund for the tuition portion of the course fee only.  All materials fees are non-refundable due to the nature of online learning.  BUT, you will forever have access to the SSI online educational materials you have purchased. These materials can be used at any time at any SSI facility to complete your certification at a later date.

Upcoming Course Dates

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Specialty Diver


Advanced Open Water Diver

Advanced Open Water Diver


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Master Diver


Professional Level Certification

Professional Certification Card