4 ms·
I think the numbers I saw for cloth was a modest reduction. Surgical refers to a broad range of objects, from a slip of paper to ones with high-filtration laye
by blip54321 5y ago
I think the numbers I saw for cloth was a modest reduction.
Surgical refers to a broad range of objects, from a slip of paper to ones with high-filtration layers. For the latter, if everyone wore them, they'd stop COVID spread. See data from Asian hospitals, Indian social workers, etc.
With omicron, it's very possible only N95 reduces R0 below 1, but we don't know that yet.
A lot of it is theatrics, but high-filtration masks do help, even with imperfect fit.