What is the function of the air saver switch found on the regulator of an SCBA?

The air saver switch on the regulator of a Self-Contained Breathing Apparatus (SCBA) is designed specifically to conserve air supply. When activated, this switch reduces the airflow being delivered to the user while maintaining the ability to breathe comfortably. This is particularly useful in situations where conserving air is critical, such as in extended operations or when the wearer is at rest. By enabling the air saver function, firefighters can maximize their breathing time, allowing them to focus on their tasks without the immediate concern of depleting their air supply too quickly. This strategic design enhances safety during firefighting operations, ensuring that users can operate effectively for longer periods.