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 ...

Easy to operate its controls, carry it, and clean or replace its filter(s). About Overall score for the Alen Breathsmart is mainly how well the model removed dust and smoke from a test chamber ...