RainX Anti-Fog prevents interior fogging before the problem begins. Ends fogging, misting and steaming of interior glass, mirrors and plastics. For use on automotive and marine interior glass and mirrors. Also work great on bathroom mirrors! Size: 3.5 pounce For use in auto and home For use on interior mirrors and glass Cleaners, reduces interior fogging and removes smoke residue Dissipates fog and condensation on interior car windows and mirrors on contact. Usage Instructions: Apply a small amount of RainX Anti-Fog to a paper towel or 100% cotton cloth Wipe across surface to be treated Allow to dry Re-apply as needed to maintain fog-free condition If any haze appears due to excess application, sprinkle with water and wipe with a dry cloth or paper towel until clear.