Did you know that most vents here in Southern Utah are made with fiberglass? Most duct cleaning companies will clean out your vents using a brush system that will damage your ducts and expose the fiberglass, so when your furnace is on you will start breathing the fiberglass into your lungs. Here at St George Duct Cleaning we only use a compressed air system that will safely clean the ducts from the contaminates without hurting your ducts.