Get ready for a new wave of high-tech, efficient air conditioners that will make your air cooler for less money.

Window air conditioners are meant to be installed and then kept in the same place. Once you install them, they aren't particularly easy to pick up and install in a different window for a few hours.

This government-required efficiency rating was mandated for portable air conditioners in 2017. If you'd like even more options, check out our list for the best AC units of 2023.