It is a little scary how many heating and cooling systems I come across that are completely filthy, then i know sometimes the owners are not aware of the state of the central cooling machine, and but other times they just don’t seem to care! Having a easily dirty heating and A/C system is not only excruciating for your air conditioner, it is excruciating for your health too. Because if it is dirty on the outside, it is entirely dirty on the inside too. This allows dust, and dirt to build up in your ductwork, which decreases your air quality. I consistently recommend air duct cleaning at least every few years, but most people never end up following my advice. In fact, there are some people that never get air duct cleaning. This just baffles me because I can only imagine how dirty it must be inside their homes! Anyways, when I went and visited one guy earlier this evening, I noticed his cooling component was pretty filthy. I also noticed that it looked like it hadn’t had Heating, Ventilation and A/C service in years. I told him about how it could shorten the lifespan of his cooling device, but he didn’t seem to care, so I did as best of a clean up as I could and I even changed out the honestly gross air filter. After that, taking care of his heating and A/C machine is all up to him. Hopefully he will take care of it before his air conditioner dies before it is supposed to.