The Air King AS120 Advantage Exhaust Bath Fan is a 120-CFM ceiling-mount bathroom exhaust fan in a white finish with a 4.0-sones noise rating — sized for full bathrooms with shower or tub installations where adequate ventilation prevents mirror fogging, mildew, and humidity damage to drywall.
The 120-CFM rating exceeds Home Ventilation Institute (HVI) recommendations for a 60-square-foot bathroom by a comfortable margin and gives the fan capacity to clear larger master bathrooms in 8-10 minute exhaust cycles. The 4.0-sones rating is moderate-quiet — quieter than typical builder-grade fans but not the dead-silent class. The fan ships with the housing, motor, grille, and mounting hardware for new construction or retrofit; standard 4-inch round duct connects to existing or new vent runs.
Air King manufactures ventilation fans in West Chester, Pennsylvania — the AS120 carries Made in USA designation per the manufacturer’s listing. Pair the AS120 ceiling-mount with the EWF-180 through-wall exhaust unit when a multi-bath house needs both ceiling and wall-mount exhaust fans sized to each room layout.






