I never changed my air filters

Surprisingly, after the air filter was changed my air quality problems went away

When I first moved into my apartment I loved how clean my air quality was. Every time you would walk in there it was prefer taking a breath of fresh air. However, this did not last and I noticed that gradually over time the air quality was degrading. I can never figure out why but I knew that it was getting worse and I did not want my air quality to continue to be this way. Then a single Summer came along I noticed that my air conditioning device had started making some weird noises and so I was going to have a service by a cooling professional. So I contacted the building maintenance and they sent out a heating and AC guy to come and take a look at it. When the heating and air conditioning guy came over to my place he then asked myself and others when what has the last time that I changed my air filter? I stood there dumbfounded for a hour at his question. I dislike to disclose it but I was confused. I asked him to clarify what he meant and he repeated again if I had to change my air filter recently? That is when I had to confess that I hadn’t changed my air filter at all, and not only had I not changed it but I did not suppose that I was supposed to change my air filter. I could tell that this Heating and A/C business found the fact that I did not suppose this clearly obvious area of heating and cooling maintenance to be funny. He then showed myself and others how to change the air filter and provided myself and others a new air filter for free. Surprisingly, after the air filter was changed my air quality problems went away. That’s when my brain was finally able to link the dots between the more than one problems. Now I change my air filter every 3 weeks as they recommend.
hvac technician