Bosch/Siemens ? Suitable for removing deposits from the appliance - including detergent. Prevents unpleasant odours from developing and ensures a clean interior of the washing machine ? Used with a 90°C or 95°C maintenance wash to provide safe, effective cleaning ? Can help to reduce unpleasant odours caused by regular low temperature washes ? Can help to ensure a cleaner, more hygienic interior of the washing machine, which can improve washing results by reducing spots and marks on laundry ? For use every three months (one box is one dose)