1. Give water before using.Don't use humidifying function when lacking water. 2. Don't add any essential oil or perfume,tu avoid blocking of atomizing piece function. 3. This product is designed with water-lacking protection.When lack water the humidifier will automatically stop mist spray.To continue working,please add water to the maximun water level of water tank and press the button restarting. 4. When cleaning the rpoduct don't wash directly under the tap to avoid short-circuit.Suggesst to clean by using a soft cloth. 5. This rpoduct cannot be used alone by children under 6 yuars of age.