this post was submitted on 21 Nov 2023
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Air filtration systems do not reduce the risk of picking up viral infections, according to new research from the University of East Anglia.

A new study published today reveals that technologies designed to make social interactions safer in indoor spaces are not effective in the real world.

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[–] [email protected] 2 points 1 year ago* (last edited 1 year ago)

I was taught μm stands for micrometers, which are 1,000 times smaller than millimeters. Nanometers(nm) are 1,000 times smaller than micrometers(μm), which means nanometers are CRAZY small!