It is a bowl-like natural dehumidifier that can be attached to the walls or put down on the floors. It can be attached to and hung up in a space without a dehumidifier hook. As the attached side of the dehumidifier hookis a gel pad it is safe from damage against the walls without ripping of the adhesive part or damaging the walls. Wash it off with water to recover adhesive strength. Dry for 2~3 minutes in the microwave and 1~2 days in the sunlight for semi-permanent use.