What color coding is commonly used for Nitrox cylinders?

The color coding commonly used for Nitrox cylinders is blue and green. This designation helps divers easily identify tanks filled with Enriched Air Nitrox, which contains a higher percentage of oxygen than regular air. The blue signifies the additional oxygen component, while green indicates that the cylinder is specifically intended for EAN use, distinguishing it from standard air tanks.

This color coding is part of a broader safety protocol that minimizes the risk of confusion between different types of gas mixes. Identifying these tanks easily is crucial, as using the wrong gas can lead to serious diving-related health issues. In practice, adherence to these color-coded systems ensures that divers can quickly recognize the gas composition of their tanks even in high-stress or low-visibility situations underwater.