I had no idea the air ducts were so dirty

My air ducts need more attention, so I should start doing that.

I would have had my air ducts cleaned much sooner if I had known how filthy they were, but there was a problem.

I was unaware of how filthy my air ducts really were. When my heating and cooling system started to malfunction, I didn’t attribute it to anything involving my airbox, instead, I assumed that it was because my air conditioning system was old and inefficient. I believed that the fact that you really needed repairs made to it was the cause of my poor indoor air quality. The air conditioning system wasn’t broken until I made an appointment with my neighborhood heating and air conditioning company, at which point a cooling technician informed me. Due to my neglect of my air ducts, I simply had poor indoor air quality. I asked him what he thought I ought to do, and he suggested that I get my air ducts thoroughly cleaned. He then asked if I wanted that done right away, and I said yes. I might as well finish everything in a single day if I’m going to have him tune up everything anyway. He then hurried up there to clean my air ducts, and I was shocked to see how filthy they were. I can’t believe I’ve been putting up with filthy air ducts for so long! He was serious, and they appeared to have never even been cleaned. I didn’t notice a significant improvement in my indoor air quality after the cleaning was done.
gas furnace