Following the outbreak of coronavirus, millions of people flocked to buy face masks to protect themselves from the virus. Data shows face masks can protect you from the coronavirus, but can air purifiers also capture coronavirus particles? What’s in Your Typical Air Purifier? Most air purifiers are made up of two things: a fan and […]
Tag: Microns
Can HEPA filters capture nanoparticles?
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 Wikipedia […]
What’s the difference between PM2.5 and PM10?
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 made of). Size Matters Now […]
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