Panasonic WhisperValue Bathroom Fan FV-05VS1 50 CFM: 15.8 Watts 3.2 CFM/Watt: 0.8 sones Duct Diameter (inches): 3" Unit Depth: 3 3/4" Grille Size (inches sq.): 13" Energy Efficiency: 3.2 Speed: 759 RPMs Current: 0.04 Amps Static Pressure: 0.1 inches...