I purchased this two years ago and used it for about six months. I stopped using it and have been storing it at home after home cleaning. I will be selling it since I don't think I will be using it in the future. There are some fold creases due to storage. Use it under a futon or bed mattress to prevent mold. It can also be used for dehumidifying in the humid rainy season and in the winter when condensation is likely to occur, as well as in closets. It can be sun-dried and reused. The humidity adjustment sheet sensor changes color from blue to pink when it's time to sun-dry. Remove the sensor sheet when washing.