What are the two most common blends of enriched air?

The two most common blends of enriched air are EANx32 and EANx36. These specific blends are widely used among divers because they offer a good balance between increased oxygen content and manageable nitrogen levels, which allows for longer bottom times and shorter surface intervals compared to standard air. EANx32 (32% oxygen) is typically utilized for recreational diving up to moderate depths, while EANx36 (36% oxygen) can be used for slightly deeper dives or where additional oxygen content can help extend dive times safely.

This understanding is crucial because using the appropriate blend can help divers reduce the risk of nitrogen narcosis and decompression sickness, enhancing the overall safety and enjoyment of the dive experience.