-Everything you need to have a business for commercial or residential of cleaning air ducts, dryer and dryer vents, bathroom vents as well as chimneys. Portable air duct machine that runs off of a kohler gas engine with roughly 120' of 8" and 10" hose, Hepa filtered vacuum, air rods with multiple styles of whips, multiple lengths of air hose, rel-air commercial honda gas powered air compressor that all comes in a 12' enclosed trailer. Have also used it remove blown insulation. Good inexpensive investment to get into. Message for more details.