AIRCARE 831000 Space-Saver, White Whole House Evaporative Humidifier 2700 sq. ft Digital Controls with Auto Humidistat. The maximum run time is 70 hours and the capacity is 6 gallons Automatically Shuts Off When Desired Humidity Level is Reached or When Unit is Empty Trapmax Filter Technology with Antimicrobial Protection Check Filter and Water Refill Indicators Easy to Use Pour-in-Fill 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.