Waterbury Clean Air Purge III Refills 1 Case (12) X 7.3 oz. KILLS: Flies, Mosquitoes, Gnats and Small Flying Moths, For use with Time Mist Metered Aerosol Dispensers Contains no CFCs or other ozone-depleting substances. Contains .975% Pyrethrins, 1.95% PBO and 3.05% MGK 264. Woodsy fragrance leaves no lingering insecticide odor