Humidifier Notes:1.Before work it is necessary to wet the filter in the water completely, unit it squeezes out water.2.Pls don't lose the spring when pull out the cotton swab,or it'll not produce mist.3.If the mist is significantly reduced, you need to replace the cotton swab.4.Pls don't pierce the atomizer plate at the spray nozzle.5. The humidifier must use tap water6. A small amount of water-soluble essential oil must be used instead of oil-based essential oil, otherwise the atomizer will be blocked7. After using the humidifier, please clean the atomizer with alcohol: 3WVoltage: DC5VColour:A:dark woodMaterial:ABSPackage Contents:1 x humidifier1 x usb cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.