Dust, pollen, smoke removal is how well a model cleared air ... Filtrete 600 Dust & Pollen is mainly how well the model removed dust and smoke from a test chamber, plus quietness for room ...

Overall score for the Filtrete Maximum ... plus quietness for room purifiers and airflow resistance for whole-house units. Dust/pollen/smoke removal: How well models cleared air of fine clay ...

The Environmental Protection Agency says North Americans spend about 90 per cent of their lives indoors and for some, ...