About Overall score for the Alen Breathsmart is mainly ... plus quietness for room purifiers. Dust/pollen/smoke removal: How well models cleared air of fine clay dust and cigarette smoke ...

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 ...

The first of the top five brands is Alen, an Austin, Texas-based company focusing solely on air purifiers. Alen places behind the other elite air purifier brands for one reason: reliability.

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

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 ...

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