Nowadays, when buying appliances, many people pay attention to the energy efficiency level, which means that the product is more energy efficient. But did you know? Products such as water purifiers, dishwashers and smart toilets that consume both electricity and water will also carry a similar label called the water efficiency rating, whose level determines the water-saving performance of the appliance. Water purifiers and other appliances on the market today are required to display a water efficiency label.