High-efficiency appliances are designed to use less energy and water compared to standard models. They often feature advanced technology that optimizes performance while reducing utility costs. Common examples include energy-efficient refrigerators, washing machines, and dishwashers that meet specific efficiency standards. These appliances are typically labeled with the Energy Star certification, indicating they meet strict energy efficiency guidelines set by the U.S. Environmental Protection Agency. By using high-efficiency appliances, consumers can lower their environmental impact and save money on their energy bills over time.