Definition: Antifoggant: A substance that helps prevent or reduce fogging up of materials, especially in an industrial setting where a lot of chemicals are used. Definition: Antifoggants are substances designed to shield against fogging caused by chemical reactions, particularly those involving water and air. They typically work through changes in the chemical properties of the materials they come into contact with to prevent or reduce the formation of fog. Examples include surfactants and liquid desiccant products that can help dissolve moisture from a product's packaging. Antifoggant solutions are often used in industries where chemicals can react with air, such as cleaning supplies, plastics, and glass, which can lead to buildup of fog and impact on equipment and the environment.