Prevents and solves problem caused by excessive humidity. Stop. Effective in areas of up to 160 sq. ft. 15 sq m. The safest and functional Humydry product. 1. Security clip system: Clip system lets you assemble the unit with ease. 2. Drain inside the unit: Lets you drain the liquid from the tank easily. 3. Large capacity tray: prevents accidental overflow of liquid. Patended anti-spill system. Prevents spillage of liquid collected in case of accidental tipping. Works without electricity or batteries. Duration of 1-3 months, depending on the temperature and humidity level. Prevents and solves problem caused by excessive humidity (unpleasant smells, mold, stains on walls, corrosion, etc) anywhere in the house: closets, basements, bathrooms, garages, kitchens. Humdry Premium 15.9 oz (450 g) absorbs excess moisture from the atmosphere until the recommended relative humidity level of 50-60% is reached. The granules become more compact as they absorb moisture and once they are saturated, liquid collected from the air begins to drip into the bottom tray. We support Africa. Keeping children in families. Made in Spain.