An oxidizing agent generating device and a liquid application device combine a gaseous oxidizing agent with a liquid creating an oxidizing agent-liquid material that is applied to a surface to incapacitate and destroy pathogens on the surface. The oxidizing agent ozone is combined with the liquid and the mixture is applied under pressure to the surface to render the pathogens ineffective. A surfactant is added to the mixture decreasing the tension of the mixture when it is in contact with the surface increasing the amount of dissolved ozone in contact with the surface.