What is the role of nitrox in SCBA usage?

Nitrox, a mixture of nitrogen and oxygen, plays a significant role in SCBA (Self-Contained Breathing Apparatus) usage by providing a longer-duration air supply in certain applications. This is particularly beneficial in scenarios where longer operational times are necessary, such as in underwater diving or specific rescue operations. By using nitrox, which typically has a higher percentage of oxygen compared to regular air, divers and responders can extend their breathing gas supply and increase the efficiency of oxygen utilization, resulting in a longer duration of use.

The use of nitrox can help improve the efficiency by enabling a more manageable level of oxygen and allowing users to work in environments that require longer air supply durations without causing rapid fatigue or depletion of breathable air. This is especially important in emergency situations where the time that the SCBA operates effectively can make a substantial difference.