This humidifer comes in 3 parts, the jug to hold the water, the base and the little white lid on top that is removable. I don't like the removable lid. I wish the jug and the top piece were just one piece like my other humidifiers. I accidentally left the little white lid off 3 times and slipped on the floor once and then the tabletop gets wet and watery all 3 times. It's kind of dangerous because of the removable lid, that you have to remember to put it back on every time you fill the water jug.