|| Washing laundry is one of the most widespread tasks of housework in the world. In the past, it generally used to be hard and time-intensive mechanical work, and for many households in the world, it still is. Today, washing machines (also known as ‘clothes washers’) perform this task in many private households worldwide using water, electricity, chemical substances and process time as resources. Due to different washing habits and practices and different types of washing machines, both the consumption of resources for doing the laundry and the potential for savings vary greatly. Energy savings of 12 to 55 % and water savings of 26 to 73 % are possible with the most energy-efficient appliances available today, and even higher savings will be possible with next generation technologies.