I completely forgot to mention that it used to make loud noises, and we had to switch it off most of the time to give our brain to rest. Once I came home and saw a lot of water around this purifier. We spent a lot of money to repair it. As a result, it went to the trash where it was supposed to be. Recently we faced another problem. A lot of giant spiders appeared in our house. We were searching for different methods online on how to get rid of them, and we found this article (spam link removed by moderator). Also, we found there another air purifier, and we ordered it straight away.