Compositions are provided that comprise a disinfectant, a pH indicator dye, and an alkaline substance. The pH indicator dye expresses a color when initially sprayed, but loses or changes color once sprayed. The compositions may be used to disinfect surfaces, and the pH indicator dye indicates what surface has been disinfected and ensures that a sufficient period of time has passed to disinfect the surface. Dispensing systems that are not fully air tight are provided for containing and dispensing the composition.
