When you buy through our links, Business Insider may earn an affiliate commission. Learn more Air conditioner cleanliness is a buzzy topic right now. Midea recently recalled its entire line of ...

We may receive a commission on purchases made from links. Once you have chosen the right sized window AC for your space, you will need to keep it in good shape, and one of the most important ...

Why do window ACs actually need a window? On the surface, it feels unnecessary — after all, the unit is clearly designed to blow cold air from the front. Why can't you just set it on the floor like a ...