AC precision tune up. Clean and tune up AC; cleaned condenser coil, checked all outdoor electrical components, tested indoor air flow, checked refrigerant levels, and tested overall AC operation. Air Exchanger and tune up. Remove filters and core to vacuum. Also clean cabinet interior. Inspect bearings on blower assembly. Install core and filters. Clean off outside hoods. Test operation of air exchanger. Lastly performed a blower wheel cleaning to increase cooling and heating efficiency. Also to increase cleanliness inside the home. Lastly to maintain longer cleanliness of the furnace and other major components inside would encourage a electronic air cleaner. All other recommendations declined at this time.