【Portable Convenience】: This 20ml anti fog spray is compact and lightweight, making it easy to carry and great for daily use. Capacity: 20ml. 20ml Anti Fog Spray. 【Versatile Use】: Ideal for a wide range of applications, this anti fog cleaner is suitable for eyeglasses, diving masks, sunglasses, ski goggles, makeup mirrors, glass, mirrors, smartphone screens, and computer screens.