Description: Water-soluble essential oils can be added, but only 2-3 drops can be added, too much placement may cause blockage of the atomizer Please use the water on the tape directly, do not use boiling or pure water! When using it for the first time, please take out the filter cotton and completely immerse it in water for about 3-5 minutes. The cotton filter is a consumable and needs to be replaced every 2-3 months or when the mist becomes smaller. When replacing the cotton filter, please completely moisten the cotton swab. There should be no gap between the cotton swab and the atomizer, otherwise the mist may not be emitted. If the fog does not disappear after normal operation, please take out the cotton swab again, squeeze out the water, and then put it back to try again, or replace with a new cotton swab to try. Specification: Color: White, Pink Material: ABS Powered by: DC5V USB Working power: 1w Water Tank: 300ml Humidifying Capacity: about 30ml/h Functions: Humidification, Air purifier, with 7 Colors LED Night Lamps, Cartoon, Mini Usages: Household Appliances, Office Desktop, Bedroom, Car Size Chart: Size:approx.97x94x94mm/3.8x3.7x3.7inch Package Includes: 1 Piece USB air humidifier 1 Piece cotton swab 1 Piece USB cable 1 Piece Manual Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2cm error in size.