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 ...

Plus, other steps you can take to improve indoor air quality. Left to right: Air purifiers from Alen, Blueair, and Coway. By ...

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.

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 ...