A window is the best option for venting a portable AC, but there are alternatives if a window is not available. Venting is critical; without it, the AC sends hot air back into the living space.

Select independently determines what we cover and recommend. When you buy through our links, we may earn a commission. Learn more. If you want fresh, breezy air without the stress of window ...

Most people buy a portable air conditioner to keep their rooms cool without needing to install a window unit or central AC. But many people don’t realize that portable ACs regularly collect water—and ...