http://tinyurl.com/ksz7fjt
WhisperSense 110 CFM Ceiling Mounted Ventilation Fan with Dual and Humidity Sensor TechnologyProduct Review
Click on the link for more reviews
Air Movement (CFM): 110
Mounting Opening: 10-1/2-Inch by 10-1/2-Inch
Sound (sones): < .03
Grille Size: 13-Inch by 13-Inch
Humity switch adjustable from 30-80-Percent