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. Recommended the electronic air cleaner filter system, Drain pan treatment to prevent biological growth and help keep the drain line clear, Surge protector to prevent power surge and damage the electrical components, blower wheel cleaning and an air exchanger tune up. Homeowner has denied all recommendations as of now; would like to talk to husband before moving forward with anything. The office to follow up with the homeowner next week to see if any work would be needed.