SDI Computer Nitrox Diver
Nitrox Certification in Jacksonville, FL
Make more of the dives you already love.
Learn to analyze nitrox, set your dive computer correctly, understand maximum operating depths, and confidently use enriched air mixes up to 40% oxygen.
Cost: $149 (due on first day of class)
Only $119 if added at the time of open water certification
Certified Open Water Diver required | No dives required | Complete in one session (zoom or in-person) + eLearning | SDI certification
Includes SDI eLearning, hands-on gas analysis instruction, certification, and practical materials.
Nitrox, also called enriched air nitrox or EANx, contains more oxygen and less nitrogen than standard air. Used correctly, it can give certified divers more flexibility within appropriate recreational dive profiles by reducing inert-gas uptake.
Nitrox is not for deeper diving. Higher oxygen mixes have shallower maximum operating depths, which is why learning to analyze your gas and set your computer correctly matters.
Computer Nitrox Diver is for recreational divers who wish to use 22%-40% enriched air nitrox.
More Flexibility for
Your Dives
WHAT IS NITROX?
KEY
BENEFITS
Reduced Nitrogen Loading
Because nitrox contains less nitrogen than air, it can reduce inert-gas uptake when used within a conservative dive plan.
Better Repetitive-Dive Planning
Nitrox can be useful for multi-dive days, dive travel, and profiles where managing nitrogen exposure is part of the plan.
Know Your MOD
Higher oxygen mixes have shallower depth limits, which is why analyzing your gas and setting your computer correctly matters.
READY TO DIVE NITROX?
GET CERTIFIED ON YOUR SCHEDULE
Complete the eLearning at your own pace
Hands-on or online gas analysis and dive-computer setup
No pool session or open-water dives required
Training With a Buddy?
Computer Nitrox is a great specialty to complete with your regular dive partner. Book together, choose a preferred training time, and we’ll coordinate a small-group session.
Frequently Asked Questions
No. You need to be an Open Water Scuba Diver or equivalent. Computer Nitrox is a great first specialty because it builds directly on the dive-computer skills you already use.
Both certifications qualify you to use recreational nitrox mixes up to 40% oxygen, analyze your gas, understand maximum operating depths, and manage oxygen exposure. The main difference is how the course is approached.
SDI Computer Nitrox Diver is designed around modern recreational diving with a nitrox-programmable dive computer. You will learn to analyze the cylinder, set the mix in your computer, and use the computer to track your no-decompression and oxygen-exposure limits.
TDI Nitrox Diver covers the same foundational nitrox concepts but places more emphasis on equivalent air depth, oxygen-exposure tables, and planning methods that can also be used with an air-only computer. It is a solid option for divers who want a more theory-heavy foundation or expect to continue toward technical-diving coursework.
For most recreational divers using a modern nitrox-capable computer, SDI Computer Nitrox is the more direct and practical choice. TDI Nitrox is not “better”—it is simply taught with a broader planning-method focus. Both are issued by the same training family and are recognized internationally.
No. This is an academic and practical specialty course. You will complete eLearning, review the important concepts with your instructor, analyze nitrox cylinders, confirm maximum operating depths, and set up a nitrox-capable computer.
Yes. You will need access to a nitrox-programmable dive computer for the practical portion of the course so you can learn to set the oxygen percentage and verify the limits you will use while diving. Bringing your own computer is strongly recommended so you learn the exact menus and settings on the unit you will actually dive with.
Do not have one yet? Reach out before booking and we can help you choose an appropriate option or discuss rental availability.
No. Nitrox is generally used for appropriate shallow-to-moderate recreational profiles, not deeper diving. Higher oxygen percentages have shallower maximum operating depths, so each mix must be analyzed and matched to the planned dive. For example, a 32% nitrox mix has an MOD of about 111 feet when planned around a 1.4 ATA oxygen limit.
Not automatically. Nitrox contains less nitrogen, which can be used to manage nitrogen loading more conservatively or extend no-decompression time on suitable profiles. But it also introduces oxygen-exposure limits, which is why you must analyze every cylinder, label the MOD, and program your computer correctly before diving.
Some divers report feeling better after nitrox dives, but fatigue is affected by many factors—such as exertion, hydration, temperature, sleep, travel, and sea conditions. We do not market nitrox as a fatigue-reduction tool.