· 60 Hours Maximum Running Time: The baby humidifier is equipped with a large 9 L / 2.4 Gal water tank, the humidifier can humidify rooms with an area of 322.9-430.6 ft² / 30-40 m² with a maximum water mist output of 300 ml/h, and can run continuously for 60 hours at the lowest mist level.· Flexible Humidification Solution: The industrial humidifier provides stable and powerful water mist output, preset humidity value range of 45%RH-95%RH, 24-hour timer setting, 3-speed spray volume, and automatic spray rotation. Humidity is constant, thus saving energy consumption and maintaining a comfortable body feeling. Two removable spray nozzles are provided to flexibly respond to high & low humidification needs.· Clean Water Mist: Equipped with UV-light to safeguard the water. Built-in ceramic stone filter box reduces impurities and scale deposits in the water. The water can be added once to meet the humidification needs of the whole day.· Non-Disturbing Sleep: The light can be turned off under the sleep mode selection. The noise level of the machine is ≤30 dB, which is as low as the sound of normal sleep breathing. Allows children and light sleepers to sleep peacefully in the bedroom.· Easy To Operate: Lighted water level window for easy observation, top filling without bending over. The machine automatically shuts off and flashes an alert light when there is a water shortage. The water filling caliber is large and easy to wipe. Favorite essential oils can be added to the diffuser box.