Set it and forget it. The Delta Breez SIG80M is a powerful yet super quiet bathroom exhaust fan equipped with a motion sensor and adjustable delay timer for the ultimate in convenience and worry-free operation. Air flow of 80 CFM with loudness rating of less than 0.3 sones. Features a DC brushless motor for extended reliability. Power consumption of 8.2 Watts with an efficiency rating of 9.8 CFM per Watt. ENERGY STAR qualified and HVI certified.