That takes an average of 20 minutes. By comparison, the best window air conditioners can cool the room by 10° F in about 15 minutes or less. For brownout tests, we set the AC to its lowest ...

These window air conditioners are made for 250- to 350-square-foot rooms. Some of the highest-scoring models also include ...

it’s a CR Best Buy. If it’s time to buy a new window air conditioner, Consumer Reports can help you hone your search. We tested more than 40 window air conditioners in our labs. After ...