We all know that air pollution is bad for human health. New research indicates the smallest particles in the air are the most dangerous. To provide a healthy and productive indoor air environment, the focus should be put on filtering particles that are 1 μm (micrometre) or smaller in diameter – particles also known as PM1 (Particulate Matter 1). Watch this video to learn more about ePM1.
Try this video with a VR headset for the full effect!