Sprayable, pressurized, liquid, inanimate surface treatment compositions comprise: a zinc source material which releases zinc ions into the treatment composition, at least one alcohol which independently of other constituents present exhibits a microbicidal effect, at least one quaternary ammonium compound which provides a microbicidal benefit, propellant, water, optionally but very preferably at least one detersive surfactant, further optionally one or more further constituents which impart one or more advantageous technical or aesthetic benefits to the compositions, wherein the compositions are at a pH such that the surface treatment compositions exhibit a microbicidal or germicidal or antimicrobial effect on treated inanimate surfaces, characterized in exhibiting a microbicidal benefit when tested against one or more challenge microorganisms, preferably against poliovirus type 1 (Sabin) [(“PV1”)], according to one or more of the following standardized test protocols: ASTM E1052 Standard Test Method for Efficacy of Antimicrobial Agents against Viruses in Suspension, or ASTM E1053 Standard Test Method to Assess Virucidal Activity of Chemicals Intended for Disinfection of Inanimate, Nonporous Environmental Surfaces, or European Standard Surface Test, EN13697, or AOAC Germicidal Spray Products as Disinfectant Test Method, AOAC Index, 17th Ed. (2000).