The Keystone 50-pint dehumidifier features a built-in worry-free pump that allows the unit to continuously discharge water upward to drain out a basement window or into a sink removing up to 50 pints of moisture from the air per day in a room up to 4500 square feet. Features include electronic controls with LED display, a 24-hour timer, a transparent water level indicator, and a full bucket alert with automatic shutoff. It also has a removable, easy-cleaning dust filter with a clean-filter alert. The auto-restart saves your settings during a power outage and the omni-directional caster wheels make the unit easy to move to another location.