Warm mist kills up to 99.9% of bacteria. 1.38-Gallon tank provides up to 85 hours of continuous runtime. Automatic off timer for up to 8 hours. Clean Tank Technology helps prevent mold and mildew. Clean transducer/ultrasonic membrane indicator. LED Digital display with programmable humidistat controls levels and 5 mist settings. Covers large rooms up to 521 square feet. Built-in nightlight with on/off control. Enhance the air by adding essential oils to the oil tray. Includes: 3 Essential oil pad trays. Demineralization cartridge. Warranty available, Limited liability warranty, 1 Year Imported Product Specifications 22x18x12 1.38 gallon Material & Care Plastic Wipe clean