What precaution should divers take regarding their buoyancy when using Nitrox?

When using enriched air nitrox, divers should regularly check their buoyancy control because the gas density of different nitrox mixtures can vary significantly. Different mixtures of nitrox contain varying amounts of oxygen and nitrogen, which affects the overall buoyancy characteristics of the diver while submerged.

As divers use nitrox with higher percentages of oxygen, the overall gas density changes compared to air, which has a different composition. This fluctuation can impact buoyancy control, particularly at different depths where the effects of pressure are more pronounced. Therefore, by regularly evaluating buoyancy, divers can make adjustments to their weight systems and positioning in the water to maintain safe and effective buoyancy throughout their dive.

Monitoring buoyancy is critical for safety and comfort underwater, enabling divers to conserve energy, avoid accidental descents or ascents, and make precise adjustments during their dives.