DCM1: AC complete, homeowner recently replaced 20x25x1 filter. Placed new filter in attic by furnace. System is fully functional and operating within manufacturer specifications at this time. Refrigerant pressures and temperatures are appropriate for indoor and outdoor weather conditions. Talked to homeowner about adding a UV light/whole home purifier. UV light will serve multiple functions such as keeping bacterial growth off of coils and removing impurities in the air improving the indoor air quality.