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Circulating air is what got 20 or so people infected with covid because someone decided to sit in front of a ventilator at a cafe South Korea. The staff, all of
by nurettin 6y ago
Circulating air is what got 20 or so people infected with covid because someone decided to sit in front of a ventilator at a cafe South Korea. The staff, all of whom wore masks didn't get infected.
https://www.straitstimes.com/asia/east-asia/covid-19-outbreak-in-south-korea-starbucks-cafe-spared-employees-who-wore-masks https://www.straitstimes.com/asia/east-asia/covid-19-outbrea...
- aaron695 6y agoYour link is the medias factoid about mask wearing. And this is the problem, no one is explaining first principals to you. You are probably thinking of this factoid in China about air conditioners and this diagram, which is not what we are talking about at all. (The evidence is downward air is what you want) https://www.businessinsider.com.au/how-restaurant-air-conditioning-gave-nine-people-covid-china-2020-4 https://www.businessinsider.com.au/how-restaurant-air-condit...
- nurettin 6y agoFan blows to the ground and separates air from infectious constituents which stick to the ground like a ball of mud. Got it.