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 ...

The best portable air conditioners ... right air conditioner for your abode. For instance, an air-con with 10,000 BTUs is good for a room of around 450 sq ft while a 5,000BTU model is suitable ...

And because noisy air conditioners can be annoying, we measure how loud each unit is on its lowest and highest settings. We test for ease of use, which determines how simple a model is to install ...