Demos is a concentrated disinfectant solution in a viscous, non-transparent or semi-transparent blue liquid with a scent from applied fragrance. It contains alkyl dimethyl benzyl ammonium chloride (0.6%) and polyhexamethylene guanidine chloride (2.4%) as active ingredients, along with surfactants and other components. The pH of a 1% solution ranges from 5.8 to 8.0. Shelf life is 2 years in unopened manufacturer packaging.