TITIROBA Dehumidifying Sheet Single - Moisture Control, with Moisture Sensor, Anti-mite, Anti-mold, Deodorizing, Dehumidifying Mat for Bedding, Moisture Absorbing Mat, Bedding, Washable, Rainy Season Measures, 90 x 180cm, Gray Color: Gray Size: 90 x 180cm Material Composition: Silica gel, ‎Polyester Features: Lightweight, Washable, Foldable Care Instructions: Machine Wash 【Moisture Control - Powerful Absorption】This dehumidifying sheet uses Type B silica gel. The large-capacity Type B silica gel absorbs not only excess moisture from futons and beds, but also unpleasant odors such as ammonia, which is the source of sweat odor. Furthermore, the moisture-regulating function of Type B silica gel inhibits the growth of mites and mold. You can spend the rainy season comfortably. 【Rechargeable - Reusable Moisture-Proof Sheet】Type B silica gel can be easily regenerated by simply drying it in the sun after absorbing moisture, making it economical as it can be used repeatedly. Also, it comes with a moisture sensor, so you can see the moisture absorption status at a glance. 【Moisture Sensor Indicates Drying Time】The dehumidifying sheet comes with a moisture sensor. When the moisture absorption capacity of the dehumidifying sheet is nearing its limit, the color of the sensor part changes from blue to pink (light white), indicating it's time to dry. The moisture absorption capacity is restored when dried in the sun. 【Washable Dehumidifying Sheet - Hygienic】We've received many requests for a dehumidifying sheet that can be washed repeatedly, especially during the season when you're concerned about night sweats! Therefore, our dehumidifying sheet uses a material that is compatible with water washing. This dehumidifying sheet is "machine washable using a net," so please consider it if you are concerned about cleanliness. Please remove the sensor when washing. 【Lightweight and Thin - Dehumidifying Mat Usable Anywhere】This dehumidifying sheet is lightweight despite its high moisture absorption capacity. It can be easily carried by women and the elderly. It's thin and light, so it can be used in various ways, such as under mattresses and futons, on the floor of closets, and for storing futons.