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As divers, we know from our initial training during our Open Water Diver course that nitrogen is the bad gas when it comes to breathing underwater and switching to Nitrox in your tank allows you to kick some of the bad gas out. The Nitrox course is a very popular specialty course and there are good reasons for this.

What is Nitrox?

The human body is used to breathing air made up of approximately 79% nitrogen and 21% oxygen and the word ‘nitrox’ comes from those two gases so, you could say that you are breathing nitrox whilst reading this! In the world of diving though, it’s when the gas in your tank is either 32% or 36% oxygen and therefore less nitrogen than normal.

Ready To Upgrade Your Dives? Discover Why Divers Choose Nitrox For Extended Exploration, Safer Profiles, And Less Post-Dive Fatigue.

Stay at depth for longer

Due to it being readily absorbed by the tissues in the body, nitrogen is the gas that determines how long you can stay underwater during your dive so if you have less in the gas you breathe, you can stay for longer.

After all, no one wants to have to go shallower earlier than necessary if there are sharks, turtles or interesting critters to be seen. On a typical dive to 21 metres, the maximum dive time is 40 minutes when breathing regular air but, when using 32% Nitrox, a dive to 21 metres can last up to 60 minutes!

It is important to understand though that you will not use less gas, if your tank of air only lasts you 30 minutes, your tank of nitrox will also only last you 30 minutes (in the same diving conditions) so, if your gas consumption is your limiting factor when considering dive times, opt first for the SSI Perfect Buoyancy specialty course as this can dramatically improve your ability to enjoy longer dives!

Shorter surface intervals, longer repetitive dives

On a diving holiday where there is so much to see and you don’t want to spend any longer above the surface than absolutely necessary, using nitrox will help. It can be used to shorten the surface interval between dives or extend the time you can stay underwater on repetitive dives, both due to the decreased amount of nitrogen the body has absorbed.

Ssi'S Easy Online Nitrox Course Takes Just Hours &Amp; Qualifies You For Free Nitrox Fills At Euro-Divers!

Course Inclusions

Learning to dive nitrox is easy with the Digital Study Material offered by SSI – it only takes a few hours and can mostly be completed at home! Once qualified, the use of Nitrox at Euro-Divers dive centres is free!

The course will teach you why nitrox allows you to make longer dives and how to use it safely through independent study, whenever and wherever it’s convenient to you. Once you arrive at the resort you will complete the rest of the course requirements with one of our instructors.


Participants need to be a minimum of 10 years old and have an entry level certification of Open Water Diver or equivalent. The course can be completed in tandem with the SSI Open Water Diver course too.

Get started! Contact Euro-Divers Egypt