Very quiet, easy to use humidifier. After doing some product research, I bought this unit in an attempt to keep my outdoor plants alive through the winter. My living room has large sunny windows but the heat tends to dry out the room. In the past, my plants started to wilt and drop leaves within days of coming indoors. It is now over 2 weeks and the plants, including begonias, are not only looking healthy but have new growth. The room is fairly large, maybe 12 x 20, and the unit seems sufficient. I do have all the plants in one area with the unit.