A preventative solution includes an aqueous base, 1 wt % to 6 wt % titanium dioxide having an average particle size of not greater than 100 nm, 0.5 wt % to 20 wt % alcohol having 2 to 4 carbons, and 3 wt % to 15 wt % of a binding agent. The preventative solution can be dispersed using a fogger, for example, sequentially with an odor neutralizing solution or a disinfectant solution.