AIRCARE 696 400HB Whole House Credenza Evaporative Humidifier for 3600 sq. ft, Light Oak New Digital Humidistat Automatically Maintains Your Desired Humidity Level Digital Readout Displays Actual Humidity Level, Desired Humidity Level or Fan Speed Automatically Shuts Off When Desired Humidity Level is Reached or When Unit is Empty Refill Indicator Shows When Bottles Needs Refilling Easy-Fill Dual Water Bottles with Refill Hose Protects your family from flu virus:  Centers for Disease Control testing has shown that relative humidity levels of 43% or more reduces the ability for the flu virus to survive. Reduces static electricity: eliminate annoying static shocks and protect your investment in your home electronics. Nurtures well-being:  soothes a scratchy throat, dry skin and eyes, and alleviates allergy symptoms. Nourishes your furnishings: hydrate your fine wood and leather furnishings, reduce creaking wooden floors.