HUMYDRY® anti-damp refills are packaged in non-woven fabric. This keeps the granulate from direct contact with the skin and the air.

When the granulate contacts the air it soaks up excess humidity and stores it in liquid form in the container on the bottom of the product. The granulate stops working when the relative humidity is low or the temperature drops below 10 C. These two factors also determine the life span of the product.