Anti-fog coatings are special treatments applied to surfaces like glasses, goggles, and face shields to prevent fogging. They work by spreading water droplets into a thin, transparent layer, which helps maintain clear visibility. This is particularly useful in environments where temperature changes or humidity can cause condensation. These coatings are commonly used in various settings, including sports, medical equipment, and safety gear. They can be found in products like swimming goggles and safety glasses, enhancing performance and safety by ensuring that the user can see clearly without interruptions caused by fog.