The 151 Interior Dehumidifier offers a quick and easy way to help you remove dampness and improve air quality around the home. The special crystals inside draw moisture and dampness from the surrounding atmosphere trapping it inside the dehumidifier. It absorbs up to three times its own weight in water, making it useful to dry out damp rooms, reduce condensation and prevent mould and mildew from building up. Its handy size means it can be placed in small areas such as cupboards and under sinks. It is ideal for use in caravans and boats during winter months when dampness is most prevalent. Directions for use: Remove the plastic lid. Peel back the foil wrapper leaving a white layer over the top. This layer allows moisture in and keeps the crystals safe. Do not remove or pierce this white layer. Replace the plastic lid. Place in a suitable area. Once the product has absorbed the full amount of water (when all the granules have turned to gel) place it in a plastic bag and throw it away carefully with normal household waste. Depending on levels of humidity in the atmosphere, the product may last for between 3-6 weeks. Not recommended for use in bathrooms.