Air purifiers can remove smoke, dust, pollen, and even pet dander from the airif they work. Consumer Reports just tested almost two dozen portable ones and found that not all deliver as promised.

What makes a great air purifier? It should clear a room of smoke, dust, and pollen quickly and quietly. It should also be easy to operate. Because air purifiers are designed to be used continuously, ...

A high-quality air purifier can be lifesaving if you suffer from seasonal allergies or if your home's air quality isn't up to par, but the best ones usually aren't cheap. Fortunately, we expect deals ...