What type of pollution control device is designed to deliver large volumes of air at relatively low pressures?

A fan is designed to deliver large volumes of air at relatively low pressures, making it the appropriate choice for this question. Fans operate by creating a pressure difference that moves air from one area to another, typically used for general ventilation and air circulation. They are efficient at moving air across longer distances while maintaining a relatively low pressure, which is ideal for applications where large amounts of air need to be circulated, such as in industrial and commercial settings.

In contrast, blowers typically operate at higher pressures compared to fans and are used for applications that require moving air against resistance, such as pneumatic conveying systems. Vacuum devices are intended for creating a low-pressure environment to draw air and substances in, not to deliver air over large volumes. Compressors are designed to increase the pressure of air or gas, which does not align with the function of delivering large volumes at low pressure.