PowerPure 5000 Warm & Cool Mist Ultrasonic Humidifier - Permanent Filter - LCD Display - Remote Control Included - Black Humidifies spaces up to 700 square feet in size. Ultrasonic humidifier offers warm or cool mist humidification. Near-silent operation is perfect for bedroom or living spaces. Features a permanent, money-saving ceramic filter that is designed to soften and clean the water in your water tank. Auto shut-off feature turns the humidifier off when the water tank is empty. LCD control panel with soft-touch buttons. Remote control included.