Panasonic FV-13VKM3 WhisperGreen 130 CFM Ceiling Mounted Ventilation Fan with DC Motor, Variable Speed Controls, Motion Sensor, White The SmartAction motion sensor automatically activates whenever someone enters or leaves the room ENERGY STAR-qualified products feature super-quiet operation and high CFM-to-Watt efficiency DC motor type Thermal fuse protection 10.5-Inch mounting opening