There are several methods of cleaning the furnace ducts on the market. Some are more effective than others. The Rotobrush furnace duct cleaning method is the most through the cleaning system on the market! The Rotobrush machine is actually a high-powered portable vacuum cleaner that has a long hose with a rotating brush that is sent through the ductwork of your home. The brush can be made to rotate in either direction to help us guide the hose through the ductwork. We also have the use of cameras to make sure we are getting all the dirt. This system is very efficient and does not make a mess in your home!