Large rooms require an air conditioner with enough Btu to keep you cool. The Frigidaire 14,000 BTU Inverter Window Room Air Conditioner (model FHWW145WE1) can comfortably handle lofty and open spaces.

Read our full Midea Duo Smart Inverter Portable Air Conditioner review. Best budget Considering its price and Btu rating, the LG LP0621WSR Portable Air Conditioner did a great job cooling.