I used this once 12 years ago, and have kept it stored away since I bought a large humidifier. I have confirmed that it works. Please note that it will not operate unless you fill it with water above the water level sensor. The height is about 21cm including the base. The instruction manual and all accessories are included. A new filter is also included. This item comes from a room with no smoking or pets. Please understand that this is a used item before purchasing.