The CarPlan Re-Usable Car Dehumidifier helps to prevent in-car condensation, clouded windows, mould and mildew. Contains Silica Drying Gel which absorbs humidity and excess moisture from inside your vehicle. Reusable simply place in the microwave for 6 mins to refresh. The built-in indicators lets you know when the dehumidifier needs refreshing. Also suitable for drawers and cupboards.