Is an adsorbent bead form of silica gel that is impregnated with an organic indicator which is rated as completely safe. This product has been developed to replace blue cobalt impregnated gels which have been declared as highly toxic and a health hazard. With the progression of moisture adsorption, the beads turn from Orange-Yellow to green. When the beads become saturated, they may be regenerated to their original dry state and colour by heating to between 100 to 120ºC. The product is free of foreign impurities such as Chlorides, Sulphates and other organic matter and has high adsorption efficiency. The material is most economically supplied in 25 kg air tight containers or may be broken down into smaller bagged volumes.