Purchased in 2019 and used for 6 years. There is a crack in the plastic part of the air outlet (photo 4). The air inlet (the opposite side of the air outlet) has been disassembled and cleaned (photo 2). In addition, there is aging and dirt due to long-term use (photo 2). I have cleaned it as much as possible so that it can be listed in a clean condition. The fan's rotation sound has become a little higher-pitched in the past few weeks, so I am listing it for sale because I am replacing it. It was working without any problems, but the operating sound has changed, so I hope that those who understand that it is a junk item in not-so-good condition will purchase it. *No box or instruction manual included.