The granulate absorbs moisture from the air, which is stored in the plastic container of the absorber. The granulate gradually decreases in effectiveness and needs to be replaced when its effects are exhausted. The shelf life of the granule is 2-5 months in a room up to 20 m2 depending on the humidity and air temperature in the room. Very wide use - use in all replaceable moisture removers. Material: calcium chloride, PP non-woven fabric. Dimensions: 450 g, 18x13x2 cm.