Standard-Duty Industrial Fan, Blade Dia. 20 in, Mobile, Oscillating, 2 Speeds, Voltage 115V AC, 1 Phase, CFM High 4750, CFM Low 3080, Air Velocity @ 20 Ft. 580/375 fpm, Motor HP 1/4 hp, Motor RPM 1100/850, Operating Amps 2/1.4, Fan Mounting Location Fan Head Only, Fan Accessory Style Standard, Fan RPM 1100/850, Sound Level 76 dBA, Max. Ambient Temp. 104 Degrees F, Hz 60 Hz, Watts 220/160, Motor Type Permanent Split Capacitor, Drive Type Direct Drive, Outside Dia. 23 In., Height 23 in