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pede9000 3 points ago +3 / -0

The science is, if a business wants to buy a HEPA air filter to kill COVID every 10-30 minutes, all they have to do is spend 200-600 ish

4
Skywise 4 points ago +4 / -0

Right - which is odd because that should be relatively easy for the city governments to verify. (Works for planes, right?)

And yet...