What is the function of the Secondary Reducer in the SCBA system?

The function of the Secondary Reducer in the SCBA system is to reduce the high-pressure air from 5500 psi to a lower, usable level. This is crucial because the air stored in the SCBA cylinders is at a very high pressure and cannot be safely or effectively used at that pressure directly for breathing purposes. The Secondary Reducer ensures that the pressure is lowered to a safe operating range, typically around 100-150 psi, which is suitable for the user to inhale comfortably from the mask. This regulation of air pressure is essential for the safety and effectiveness of the breathing apparatus, allowing firefighters and first responders to breathe in a controlled and regulated manner while performing their duties in hazardous environments.