Shouldn’t we be putting HEPA filters on every air conditioner and heater? Don’t HEPA filters take viruses out of the air?
In: Technology
Not worth the trouble or expense. The problem is that HEPA filters only catch things sized 0.3 microns and up, but the corona virus is smaller than that – 0.125 microns. Still, the virus is usually coughed or sneezed out on larger particles which the filter might catch, except that those particles tend to fall to the ground pretty quickly anyway. And finally, even if the HEPA filter could catch all the particles, it wouldn’t clean the air quickly enough to prevent someone coughing from infecting someone else who’s nearby at the same time, and it wouldn’t help if you touched a contaminated surface and then rubbed your eye, etc.
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