The Delta BreezSmart SMT130H marks a new achievement in ventilation for green construction with powerful performance at very low noise and low power consumption. This quiet energy efficient exhaust fan features an adjustable humidity sensor and adjustable continuous low speed control. Air flow of 130 CFM with loudness rating at less than 0.3 sones. Power consumption of 11.6 Watts with energy efficiency rating of 11.2 CFM per Watt. Features a DC brushless fan motor for extended reliability. ENERGY STAR qualified and HVI certified.