This product has been specifically developed as an anti-fog protection for diving and swimming goggles, although it is equally effective on any glass surface (inside of windshields, bathroom mirrors, eyeglass lenses, etc.). Due to its neutral pH value (7.0) and the non-irritating nature of its components, it is ideal for use on surfaces near the eyes. Its base consists solely of deionized water and contains no organic solvents, as these could evaporate under dipping conditions and affect the surfaces as well as the eye fluids. When applied correctly (according to the instructions), a protective film forms that prevents the condensation of micro-droplets on the surface where it has been used. The low concentration of surfactants and the included silicone extend its effectiveness for about 2 hours (depending on conditions). As formulated, it is the ideal combination of efficacy and application safety for swimming and diving activities. 350+ pumps per bottle. Content: 60 ml - 0% alcohol.