-Keep the device and the adapter dry.


-If the device is broken, do not touch any inner part to avoid electric shock.


-Never insert any objects into the device.


-Always check the device before you use it. Do not use the device or adapter if it is damaged. Always replace a damaged part with one of the original type.


-The adapter contains a transformer. Do not cut off the adapter to replace it with another plug, as this causes a hazardous situation.


-Do not use the device if the UV filter of the light exit window is broken.


-Do not use the facial attachment or the bikini area attachment if its filter is broken