The best portable air conditioners are ideal for rooms that can't accommodate window air conditioners, renters with limited cooling options, and keeping you comfortable during extreme heat waves.

window units, portable air conditioners, ductless mini split, and through-the-wall units. Btu is short for British thermal units. One Btu is equal to the amount of heat needed to raise 1 pound of ...

Mini-split and central cooling systems that ... occasionally experience extreme heat and humidity often choose window air conditioners instead. They’re less expensive than heat pumps, and ...