What is the primary goal of using Nitrox in relation to nitrogen exposure?

The primary goal of using Nitrox is to lower nitrogen absorption to reduce decompression risk. When divers breathe air, they inhale nitrogen along with oxygen. The nitrogen can accumulate in the body tissues during the dive, and if a diver ascends too quickly or makes a series of deep dives without adequate surface intervals, this can lead to decompression sickness, commonly known as "the bends."

By using Nitrox, which has a higher proportion of oxygen and a correspondingly lower proportion of nitrogen compared to regular air, divers can achieve reduced nitrogen exposure at given depths. This reduction in nitrogen levels helps to decrease the amount of nitrogen that dissolves in the body during dives, thereby minimizing the risk of decompression sickness. The enhanced safety this provides allows divers to extend their bottom times or shorten required surface intervals between dives.

The other options relate to different aspects of diving. Increasing oxygen absorption is not the primary goal, as excessive oxygen can lead to toxicity. While maintaining higher pressure levels is important for proper buoyancy and gas law considerations, it does not directly relate to nitrogen exposure. Buoyancy control is certainly advantageous for safety and efficiency during dives, but it is not the main benefit of using Nitrox. The key advantage lies in the effective reduction of nitrogen