A boiler blower, also known as a soot blower, is a device that removes soot and ash from the inside of a boiler's heating surfaces. This prevents the gas passes from becoming clogged and maintains the boiler's efficiency. Soot blowers can be controlled manually or set to run automatically at timed intervals.Centrifugal, axial, and positive displacement blowers are the three types of industrial blowers.Conveying systems, ventilation, cooling, aspiration, and exhaust systems are all examples of processes and applications where a flow of gas or air is required.