Dust, pollen, smoke removal is how well a model cleared air ... the Germ Guardian AC5000B is mainly how well the model removed dust and smoke from a test chamber, plus quietness for room purifiers.

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 ...

You can also opt for the Germ Guardian Air Purifier for large rooms ... There is also the HoMedics TotalClean Tower Air Purifier that has a unique design and is only $151.51 for a limited time.