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A comment on Real-world data show that filters clean Covid-causing virus from air. Parent comment

Re:Real-world data show that filters clean Covid-causing vir... by _3ddw on Saturday October 09, 2021 @08:44PM (#28814736)
I am so confused… how do they think covid spreads, then? Why should you wear a surgical at all, then?
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Re:Real-world data show that filters clean Covid-causing vir... by dmix on Saturday October 09, 2021 @09:15PM (#28814902)
The sign I saw at a hospital in Toronto said no fabric masks, only surgical. It’s probably about uniform coverage not overall efficiency, a compromise of most big central systems.
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Re:Real-world data show that filters clean Covid-causing vir... by blub on Sunday October 10, 2021 @02:48AM (#28816335)
My corner flower shop has a sign saying surgical or FFP2, just like most shops I’ve seen in my area of Germany. If they can manage it, so should a hospital.
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