Portable Mini Ultrasonic Humidifier Desktop Air Humidifier USB Household Mineral Water Bottle Heavy Fog Humidificador|HumidifiersFeatures:Suitable for most mineral water bottles on the market (size is about 32*13mm)A bottle of water can last a long timeUSB powered, compact and portableIntelligent anti-dry burnDue to measurement problems, there may be errors in the actual received size and the stated size. This is normal, please understandThree modesMode 1: Spray for a long time, a bottle of mineral water (about 550ml) can be sprayed continuously for about four hours.Mode 2: Spray for one minute, stop for one minute, a bottle of mineral water (about 550ml) can be sprayed continuously for about eight hours.Mode 3: Night light functionImportant things you need to know:1.The humidifier uses pure water, do not use tap water2.Clean the atomizer regularly, because the atomizer is the key to the fog3.Do not add too many essential oils (1-2 drops). And only add water-soluble essential oils. Otherwise, the humidifier will be corroded. Clean the humidifier and atomizer in time after using essential oils.