I have heard several horror stories from people who forgot to change the air filters in their a/cs for long periods of time.
They complain that whenever they turned their a/cs on, they immediately begin to get sick.
They won’t realize what is causing it at first, but eventually, they will begin to suspect that their heating and A/C equipment has something to do with it… When they finally go and check their a/c, they remember that they haven’t changed their air filter in a while. When they pull the air filter out of their a/c, it is completely covered in mildew and slime… However, this was not our experience! I change our air filter pretty often, thankfully, but this was the first time that I had managed to forget. The a/c didn’t make me sick or anything, but there were subtle signs that something wasn’t working right. Somehow our a/c was set to the coldest temperature, but it wasn’t blowing as strongly as it had in the past. When I listened to it closely, it would make these slight whistling sounds that made me wonder if our a/c was being congested from blowing as hard as possible. I checked the air filter in our a/c, and sure enough, it was a little dirty inside. I had a clean filter on hand, so I quickly threw it in and turned our a/c back on—no harm, no foul. When you inspect and clean your a/cs as much as we do, you realize that you can prevent major heating and A/C complications that pretty much everyone experiences at some point. The next time your a/c stops working correctly, always check the air filter.