What is the primary benefit of using Nitrox for recreational diving?

The primary benefit of using Nitrox for recreational diving is indeed the increased bottom time due to lower nitrogen content. Nitrox, typically a blend of nitrogen and oxygen with a higher oxygen percentage than regular air, decreases the amount of nitrogen a diver breathes. This lower nitrogen content reduces the risk of nitrogen narcosis and nitrogen bubbles forming when ascending. As a result, divers can extend their bottom time at given depths compared to diving with standard air.

This increased bottom time allows divers to explore more of the underwater environment without as much concern for nitrogen loading, making Nitrox a popular choice among recreational divers who want to maximize their dive experience. While there are additional benefits to using Nitrox, such as potentially reduced surface interval requirements or better management of no-decompression limits, the most recognized advantage is indeed the ability to dive longer at specific depths due to the reduced nitrogen exposure.