Self-cleaning glass is a type of glass that has a special coating designed to break down dirt and grime when exposed to sunlight. This process, known as photocatalysis, helps to keep the glass clean with minimal effort. The coating allows rainwater to wash away the loosened dirt, making maintenance easier for homeowners and building managers. The technology behind self-cleaning glass often involves titanium dioxide, a compound that reacts with UV light. When sunlight hits the glass, it activates the coating, which then decomposes organic materials. This innovative feature is commonly used in windows, facades, and solar panels to enhance cleanliness and reduce the need for frequent cleaning.