Installed 2 reme halo UV lights in attic air handler and basement air handler. Performed whole house duct cleaning on both systems. Hooked up high powered 240 volt hepa filter vacuum to return and supply side of both systems. Sealed all vents and individually went to each vent and blew high pressured air in sweeping motion through each vent towards hepa vacuum. Performed sanitation through both systems while system fan was running. Both systems are operating properly at this time.