This dehumidifier instantly lowered the humidity in our 1200 sq ft basement. It runs relatively quietly. It expels warm air but as we have it in a hallway, that's not a problem. We placed the hose that comes with the dehumidifier into a utility sink but the force of the pump propelled the hose onto the floor, along with 50 pints of water. We've subsequently secured the hose into the sink and haven't had a problem since. Easy to use, attractive design.