The Myth about Nitrox (Enriched Air) 

More time underwater? 

Nitrox only affects your no stop time underwater depending on the percentage of the oxygen in your mix. Our no stop time is limited by decompression models calculating our nitrogen absorption. The more oxygen in the mix the less nitrogen we will absorb during a similar dive on air, so we could stay longer on Nitrox until we reach the no stop time. But there are also issues with more oxygen in your gas, that’s why it is so important to be properly trained before using Nitrox:

1. You need to know how to analyze the blend you are using.

2. Setting up your dive computer for the specific blend is crucial because the computer can only calculate what you tell him.

3. Breathing higher oxygen under pressure can be a risk, due to oxygen toxicity, you need to know the acceptable limits.

4. Using the right equipment: in some areas you need to have specific oxygen clean equipment to dive on Nitrox.

5. Pushing the no stop and depth limits on Nitrox include the same risk of decompression sickness and gas narcosis like with normal air.

1. Improve your buoyancy control and the amount of weight you are using.

2. Being streamlined: attach all your hoses and other equipment close to your body to have less drag.

3. Relax and stay calm underwater.

4. Efficient kicking style: most experienced divers use the frog kick to move underwater.

5. Use a bigger cylinder: Some dive centers offer 15 liter tanks for additional fees for customers with higher air consumption (so you’re not improving but it will give you more time underwater).

Conclusion: