This is designed to remove excess moisture from the air in your wardrobes & home. The simple to use leak-proof design helps to attract and trap moisture droplets, and their active scent helps to freshen the air in confined spaces, keeping clothes and belongings safe from dampness. The hygroscopic (calcium chloride) like iron filings to a magnet attract excess moisture and help combat condensation, dampness, mold, mildew, and associated problems, whilst providing a delightful and subtle scent in the process. The built-in hook makes this product easy to hang in wardrobes, caravans, boats, garages and anywhere excess moisture is causing a problem. The hanging dehumidifier will last between 6 - 8 weeks depending on ambient conditions and will absorb up to 2 times its own weight in moisture, locking the liquid in. Always read instructions on the product packaging before use.