Dehumidifier for regulating indoor air in damp or poorly ventilated spaces. It prevents excessive humidity, condensation, and musty odors. 1 kg lasts for about 3 months in a room of up to approximately 100 m³ and absorbs about 1 liter of water. Ideal for basements, garages, attics, closets, caravans, boats, sheds, etc. It consumes no energy and is easy to refill. Dehumidification improves the indoor climate, helps with drying laundry, and prevents mold formation. The dehumidifier can be used in a variety of ways. Particularly in rooms that cannot be ventilated at all or only limitedly, such as in basements or crawl spaces, the device prevents the growth of bacteria and mold, thus protecting inventory and building materials. Additionally, the dehumidifier accelerates the drying of hung laundry when used in the laundry room. On humid summer days, the device creates a cooler and more pleasant indoor climate in your living spaces by reducing humidity to a comfortable level between 40 and 60 percent.