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;Can be run with no less than 110 CFM and no more than 0.3 sone;Housing: Double hanger bar system allows for ideal positioning;Grille: Attached directly to housing with torsion springs, Motor type- Condenser, Grille Size: 13-Inches