Humax, Portable & Desk Top Mini Cool Mist Ultrasonic Humidifier, Turn A Water Bottle Into Humidifier & Oil Diffuser, Fits To Any Spring Water Bottles, Bottle Not Included, No Filter Replacement, Auto Shut Off Protection When Water Storage Is Empty, Always Fresh Mist & Whisper Operation With Less Than 35 DB, 6' Away, Power Control From Min To Max, Consume 3 OZ Water Per Hour At Medium Power, 16 OZ Spring Water Bottle Runs For 5 Hours At Medium Power, Power Supply, 110V/50-60 HZ Low Electricity Consumption 2W, Room Area Coverage Of 500 SQFT.