Which component in a pollution control device is responsible for creating airflow?

The component responsible for creating airflow in a pollution control device is indeed the fan. Fans are mechanical devices that impart kinetic energy to the air, moving it through the system. In pollution control applications, this airflow is critical for ensuring that contaminants are effectively captured, filtered, or treated before being released into the environment. The fan maintains the necessary air movement which is essential for the operation of other components, such as scrubbers or precipitators, enabling them to perform their functions effectively.

While scrubbers and precipitators serve important roles in the removal of pollutants and particulates from the air, they rely on the airflow generated by the fan to operate. A vacuum, on the other hand, is typically used to extract air or gases from an enclosed space but does not create airflow in the same manner as a fan does in the context of pollution control systems.