Patent ID: 8609021

Claim:
A method for disinfecting a room and the objects that may be contained therein, including the following steps: (a) determining the volume of the room to be disinfected; (b) as a function of the value determined in step a) above, determining a volumetric concentration of an aqueous disinfecting solution delivered into the room in the form of a dry mist required for obtaining a predefined level of disinfection, said disinfecting solution comprising hydrogen peroxide and silver ions (Ag + ); (c) delivering into the room said aqueous disinfecting solution in the form of a dry mist until the desired volumetric concentration is achieved; (d) keeping said aqueous disinfecting solution in the form of a dry mist in contact with the room and with the objects that may be contained therein for a predefined time, so as to achieve a desired level of disinfection, wherein said aqueous disinfecting solution comprises: (a) 2 to 30% by weight of hydrogen peroxide; (b) 20 to 140 mg/kg of silver ions (Ag + ); (c) 10 to 250 mg/kg of phosphate and/or hydrogen phosphate ions; (d) 0.1 to 2 g/kg of at least one non-ionic surfactant selected from: ethoxylated fatty alcohols, ethoxylated fatty acids, esters of ethoxylated fatty acids, or mixture thereof.