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.

Midwest summers are a hot, sticky affair, and my old house was never outfitted with an HVAC system. So, I have to rely on window and portable air conditioners to cool this 4,000-square-foot space.

If you’re shopping for a smart air conditioner you can easily move from room to room and control with your phone or your voice, there aren't a ton of options out there. Luckily, the $599.99 Midea Duo ...