Self-cleaning refers to the ability of certain materials or surfaces to remove dirt, stains, and contaminants without the need for manual cleaning. This technology is often found in products like self-cleaning ovens and self-cleaning litter boxes, which use heat or special coatings to break down and eliminate waste. The process can save time and effort for users, making maintenance easier. In addition to household items, self-cleaning surfaces are also used in architecture and design. For example, self-cleaning glass is treated with a special coating that allows dirt and grime to wash away with rainwater. This innovation helps keep buildings looking clean and reduces the need for frequent maintenance.