Need to clear out hot air, fumes, or moisture from your workshop, garage, or greenhouse? This iLiving 10-inch Shutter Exhaust Fan means business. It moves a massive 820 cubic feet of air per minute (CFM) and can cover areas up to 1200 sq ft. The automatic shutters open when it runs and close when it's off to keep out pests and drafts. The coolest feature? It comes with a Thermospeed controller that lets you set a temperature – the fan turns on automatically when it gets that hot – and you can also adjust the speed manually. Built with a galvanized steel frame, aluminum blades, and a reliable, permanently lubricated motor. It's UL-listed, relatively quiet (<65 dB), and a breeze to install (just need to wire it up). Say goodbye to stuffy, smelly spaces.