1,The water tank should not be too full and don't let the cover upsite down when you need to add water every , otherwise when the product is working, water will enter the circuit board and cause water to flow out of the buttons or USB interface and fail to work.
2,Please take the cotton filter out and wet it compeletely before use.
3,It need full charge or plug in supply to use.Please plug in the supply when you first use the product.
4,Please keep the spary mouth dry and clean it everytime after use.