What is the primary function of the SCBA?

The primary function of the Self-Contained Breathing Apparatus (SCBA) is to supply oxygen to firefighters. This device is crucial in situations where the air quality is compromised, such as during a fire, hazardous material spill, or confined space work. Since these environments may contain smoke, toxic gases, or lack sufficient oxygen, the SCBA provides a safe and reliable source of breathable air, allowing firefighters to carry out their critical tasks effectively while protecting their health and safety.

In understanding the context of this question, it's important to note that while medical assistance, water pumping, and air quality measurement are vital aspects of emergency response, they are not the primary functions of SCBA. Instead, the apparatus's core design and purpose focus solely on supplying breathable air to users in unsafe atmospheric conditions, ensuring they can perform their duties without the risk of suffocation or inhaling hazardous substances.