Panasonic FV-11VQ3 WhisperCeiling 110 CFM Ceiling Mounted Fan,Panasonic,FV-11VQ3" /> Motor/Blower: Power Rating of 120 volts and 60 Hz Motor/Blower: Fan is UL listed for tub/shower enclosure when used with a GFCI branch circuit wiring. Housing: Built in back draft damper Housing: Double hanger bar system allowing for ideal positioning Grille: Attached directly to housing with torsion springs