The Aprilaire E080 is a great dehumidifier to make the whole home more comfortable without setting the thermostat to artic mode. If you have a musty basement, this is a perfect solution. The best relative humidity range for a home is between 40-50%. Try this dehumidifier out. Rental includes delivery and installation. The rental installation does not include ductwork attachments. If you like it, buy it! Rental cost will go towards purchase price. Arrangements will be made for purchase. This offer is for the greater St. Louis region.