The Dustmaster® 18,000 CFM Dust Collector from Marco helps control dust generation. With an 18,000 CFM maximum air flow rate, it moves more air when compared to other units its size. It features a 91 hp Tier III Diesel Engine, four 20” duct hose inlets, 6” discharge auger system and a 55-gallon diesel fuel tank. It is the perfect unit for applications where a typical 20,000 CFM dust collector would be used.