Data shows face masks can protect you from COVID-19 and the delta variant, but what about air purifiers? Can air purifiers with HEPA filters remove COVID-19 and other viruses? Can Air Purifiers With HEPA Filters Remove COVID-19 Delta Variant and Other Viruses? To answer this question, we need to first … Read more
Many big purifier companies claim only their HEPA filters capture nanoparticles, like this Molekule ad. Although this claim is false, even journalists repeat this myth. Why is this belief so pervasive? One reasonable explanation is that the definition of “HEPA” leads people down that route. For example, this definition on … Read more
The difference between PM10 and PM2.5 is size. “PM” refers to particulate matter—particles in the air. Those particles are things like organic dust, airborne bacteria, construction dust, and coal particles from power plants (here’s what researchers in Shanghai found when they collected air pollution particles and found out what they were … Read more
