Calgon hygiene Plus water softener tabs are the first Calgon limescale prevention tablets that combine outstanding protecting from limescale, residue and odours with hygiene protection to hygienically clean your machine. Simply add one Calgon hygiene Plus tablet to each wash in addition to your usual detergent for 1) limescale prevention, 2) detergent residue and dirt removal and 3) odour elimination, to keep your washing machine clean. Use once a month in an empty Wash for a hygienically clean washing machine. Calgon works to protect all vital parts of your washing machine from limescale damage and prevent dirt residue, leaving your washing machine healthy and clothes protected in every wash and at all temperatures. It not only prevents Lime scale build-up in your heating element but it also works to protect your drum, pipes, hoses, pump, and all the components of your washing machine that come into contact with water. "Washing machines live longer with Calgon.