BONECO Warm or Cool Mist Ultrasonic Humidifier U700 High Output: Up to 4 gallons/24 hours for rooms up to 1000 sq ft Auto Mode for fully automated operation, large water tank high humidity output 80 m2 Smart automatic shut-off when water tank is removed New innovative Cleaning Mode allows for easy cleaning of the unit Auto-Mist Technology, relaxing ambient LED night light and fragrance tray