What is the maximum duration typically earmarked for SCBA air supply?

The maximum duration typically earmarked for SCBA (Self-Contained Breathing Apparatus) air supply is commonly around 30 minutes, depending on the conditions and the user’s exertion level. It's important to consider that the actual usable air supply may vary prior to reaching the 30-minute mark, as factors such as breathing rate, physical activity, and the environment can impact how quickly the air is consumed.

Longer durations cited, such as 60, 90, or 120 minutes, generally do not apply to standard SCBA units used in fire fighting and emergency scenarios. Even if high-capacity SCBA models are available, they are not the standard and might not be as readily accessible or recommended for most firefighting operations. Thus, understanding the typical air supply duration helps ensure that firefighters and emergency responders plan their operations effectively while ensuring safety during incidents that require the use of SCBA.