This direct drive, wall exhaust ventilation fan is used for general exhaust ventilation. It comes fully assembled and 100% tested for proper operation before shipping. It has a rugged, welded steel box housing with a powder coated finish and aluminum exhaust louvers. The louvers open automatically when the fan starts up and close when the fan stops. The fan has a cord and grounded plug. Simply plug the fan into a 115 Volt socket. Use the pull chain to turn fan off and adjust speed. Perhaps best of all, installation is fast and simple.