The Q Standard 12" Exhaust Fan provides a quick way to clear the air in your garage, shop, barn or basement. It installs on the inside of a wall eliminating the need for external framing and shutters. The 3-speed 1/15-hp motor is permanently lubricated and totally enclosed. A junction box is provided to allow for direct wiring. The aerodynamic aluminum blades spin inside a heavy-duty spiral wire guard.