Add Yahoo as a preferred source to see more of our stories on Google. Keeping your window AC unit clean helps improve its performance and longevity. This summer has been an absolute scorcher, with ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...

Air conditioning systems play a huge role in making our homes feel comfortable and getting us through the dog days of summer. Keeping them clean is essential — if your AC unit is dirty, it has to work ...