Pollution Fighter Automatic Roll Filter Air Cleaners (Air Scrubbers) are filtering the air in all industrial environments, for processes such as sanding, grinding, buffing, welding, soldering and machining. Industries utilizing Pollution Fighters include wood products manufacturers, machine shops, printers, corrugated box industry, composite industry, auto body repair facilities and welding shops. There is a Pollution Fighter for each application regardless of what type of air quality problem needs to be solved. Making Clean Air Easy since 1981.