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 ...

The best window air conditioners can turn a sweltering apartment into an icebox. They come in handy for anyone buying an older home that isn’t outfitted with central air conditioning, and they’re a ...

As is the case for many people, my home cannot be retrofitted with central air. My 100-plus-year-old Brooklyn apartment, which features prominently in my seven years of air quality reporting for WIRED ...

Summer is officially here, and the hot weather isn’t going anywhere anytime soon. If you use window AC units, it’s time to drag them out of storage, clean the filters and wrestle them back into your ...