"This Tjernlund Fresh Air Fan with Hood brings controlled fresh air into your home, shop or garage. U.S.A. Watts 18, Power Cord ft. 6, Air Delivery CFM 75. Helps replace air in rooms with exhaust fans, wood-burning stoves and fireplaces and freshens air in unoccupied homes Includes 4in. screened intake hood and a plug-in fan with 6-ft. power cord and 4in. duct connections 75 CFM 18 Watts"