Alcohols (ethyl and isopropyl) are a good general disinfectant at concentrations of 70-80 percent (volume/volume) in water. They are effective against vegetative bacteria, fungi and lipid-containing viruses but not against spores. The activity against nonlipid viruses varies. The contact time to achieve effective disinfection is at least 10 seconds on skin and at least 3 minutes on environmental surfaces. An advantage of alcohols is that they do not leave any residue on treated items.
Note: Alcohols are volatile and flammable and must not be used near an open flame. Working solutions must be stored properly in order to prevent the evaporation of alcohols.