4 ms·
I don't think this will really be a surprise to anyone for surgical masks. But it is surprising that N95s didn't make for a more clear cut result.
by dent9876543 4y ago
I don't think this will really be a surprise to anyone for surgical masks.
But it is surprising that N95s didn't make for a more clear cut result.
- croes 4y agoBecause people can't and don't wear masks 100% of the time. If you are surrounded by the virus it's only a matter of time until you git infected, if you have only short periods masks help.