I have purchased two of these Vicks filter free humidifiers. I have one in my room and one in. Y daughter's room. They are just the right size for both. The design- these are simply desif ed. But Dont let that fool you, even though they are little they still pack quite the punch. The. Out perform any of the other humidifier systems I Have used in the past. Easy to clean- no filter means nothing messy to clean or change out. This paired with the design makes them super easy to clean. Noise level- the noise level is very low. I don't even hear it most of the time, so I give It major kudos for that. The two biggest plus' for me are the size and how quiet it Is. I purchased Both of mine at the same time and haven't had any issues with them since I bought them. They are a great investment .