Rain-X Interior Glass Anti-Fog Cleaner exceptionally improves wet weather driving visibility. It improves visibility by repelling rain, sleet sand snow. It avoids early morning car fog and can be used for both interior and exterior part of the car glasss. Due to better visibility driving response times improve by a full second or more. Easy to use, increases visibilty. Use on both exterior and interior of car glass. Antifog, improves driving response time.