My cousins had come over for my housewarming party and my friends were present too. We were having the time of our lives. There were indoor games and we drank wine at the bonfire near the house. When we were playing poker in the house, my cousin bet that I would do the HVAC tune up for his unit if I lost and that he would pay to service my car if I won. I was pretty confident I was going to win because I had bitten him in poker before. It was a surprise when I lost, but since I did lose, I needed to keep my promise. I scheduled to visit his residence two days after the housewarming party. His heat pump instal had been done a while back and so the unit was not as old. The central air conditioning was in good condition and the maintenance session did not take me a long time. I had my a/c repairman clean the washable filter, then the engineers checked on the ductwork, did the duct cleaning, and made sure that the air ducts were not blocked by any debris. I was surprised to see the kind of outdated thermostat that my friend was using, it was the dial one. We upgraded it to a smart one. We also checked on the air purification system and confirmed it was in good condition. My friend told me how he kept referring to the air purification help tips whenever he needed to in order to enhance the function of the unit. Being an a/c representative who knows more about air conditioning, I determined that my friend had really taken care of his cooling products as they worked and looked as new as they did when he got them.