An antimicrobial composition and method of using the composition to reduce apopulation of microbes present on a non-human and non-animal surface. Thecompositioncomprises an antimicrobial agent and water, and is formulated to cause thewater toevaporate faster than the antimicrobial agent when the composition is appliedto thesurface, thereby concentrating the amount of antimicrobial agent during theperiod ofevaporation.