Indoor air pollutants such as mold, dust, pollen and pet dander can not only cause breathing problems, but also be a source of offensive odors. Using a quality air purifier can remedy such indoor air quality problems, so Air Purifiers America decided to conduct tests on several models of air purifiers using a specialty laser particle counter to measure the percentage of particles removed from the air. The counter was able to measure particles, such as pollen, mold, dander and dust, as small as 0.3 microns. The results of the test follow, with higher percentage numbers revealing more particles removed from the air by the corresponding air cleaner.

