Fire retardant is a substance that slows down or prevents the spread of fire. It can be applied to various materials, such as wood, fabric, and plastics, to enhance their resistance to flames. Fire retardants work by either forming a protective barrier or releasing chemicals that inhibit combustion. These materials are commonly used in construction, textiles, and transportation to improve safety. For example, fire retardant paints are often applied to buildings, while fire-resistant clothing is worn by firefighters and industrial workers. By using fire retardants, the risk of fire damage and injury can be significantly reduced.