I worried about system failure

When I had some friends over the other day, my one friend was such a cut up. He was cracking jokes about nearly everything and then he said something about my air quality and I assumed it was a joke. No one else was smiling though and then he said he was serious, my air quality was needy. It felt humid inside of the household and the A/C was lackluster. My face then went bright red and I said I faithfully changed my air filters. He said that was definitely not sufficient for such a vital household appliance. He said I needed to get my HVAC tuned up regularly and checked out to see if any parts needed to be fixed up. He also said that I should invest in a humidifier/dehumidifier combo so that the excess humidity in the air could be removed and it would feel great throughout the house. I listened to him and I ended up reaching out to my local HVAC company. They installed the new humidifier/dehumidifier combo and die maintenance on my HVAC system. After that, everything just fell into place. The air quality went way up, which was awesome! The next time my friends were over, we were all playing around again and my one friend said something bad about the air quality to me. I just looked at him knowing that I had everything working great. He then said he was just joking and the air quality was divine. He said I clearly put the work into fixing it. We all laughed and had a good evening hanging out.

HVAC installer