Portable air conditioners account for almost 20 percent of the room air conditioner market, but our lab tests reveal that they deliver only mediocre performance. In fact, not a single model earns ...

At Consumer Reports we test room air conditioners in a special climate-controlled chamber. We test three sizes of window ...

Dust, pollen, smoke removal is how well a model cleared air of fine clay dust and cigarette smoke when operating at a low speed that was typically one setting above the lowest speed. Many models ...