we will charge ($99) and the package includes. 1) All the Ducts 2) All the Vents 3) Natural disinfectant sanitizer will be sprayed into the main line of your duct system during the cleaning. Sanitizer can be used around children, pets and food. 4) Free Inspection/check up of your, Furnace, A/C and dryer vent will be provided if it needs cleaning the technicians will be quoting you the price on the spot 5) No extra charges like per duct or per vent or hook