"Thank you for choosing the Air Innovations - Clean Mist Smart Humidifier". It "uses Ultrasonic Technology to create humidity instantaneously, while working silently to erase the discomforts of dry air." 

A copy of the pertinent pages of the user manual are included for instructions on how to use, fill, and maintain. This is a great unit that has been cleaned thoroughly and is in great working condition. 

There is a slight, nearly imperceptible blemish on the right-hand side of the base where something might have hit the very edge. It has no bearing on the unit's functionality. The display appears to be a bit cloudy when the unit is off but is not at all noticeable when all the LED lights are on. Quite a pleasing display! Please see photos.