Performed the cooling evaluation in Dale and found bacteria growth inside the air handler and on the air movement system, heat transfer media coil is very rusted. System is getting up there in age and recommend a comfort specialist come out and quote a system replacement. Found the pressures to be a little low and added a pound of refrigerant to bring them back to operating standards upon customers request. They would like comfort specialist to come out and quote a system replacement and would like to visit the idea of a UV light when the system is installed. They would like to see what it would be for one inside the air handle as well as the Reme halo.