These models can help clear harmful particulates. Plus, other steps you can take to improve indoor air quality.Left to right: ...

The best air purifiers can help filter fine particles, gases and other pollutants from the air you breathe. See our top picks ...

Alen Breathesmart 45i: This Alen air purifier relies on a medical-grade H13 true HEPA filter, which did an outstanding job of removing particulate matter from our test room. This model is also ...

Dust, pollen, smoke removal is how well a model cleared air ... the Alen Breathsmart 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 ...