HydroCLEAN is 100% Pure Hypochlorous Acid, made in Cleveland, Ohio. HydroCLEAN not only disinfects hard surfaces, but also attacks contaminants carried in airborne particulates. This technology combines water, salt, and an electric charge to create the disinfectant. HydroCLEAN has a fresh, clean smell, almost like salt water. This powerful formula is water-based, non-toxic, leaving no residue or harmful chemicals – making it people, pet & food friendly!