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A comment on Cloth/disposable masks have no effect on exercise performance in healthy people.

Re:Cloth/disposable masks have no effect on exercise perform... by thedrbrian on Saturday November 07, 2020 @08:42PM (#25021975)
To be effective a filter has to be a restriction, how are they showing people with increased performance with a filter?

Unless the filters aren’t working.....

[ Parent | on HN ]
Re:Cloth/disposable masks have no effect on exercise perform... by jfengel on Monday November 09, 2020 @11:27AM (#25036419)
The filter is intended to filter out particles 100 nanometers and up. Air molecules are .3 nanometers.

So a mask can, in fact, both filter out the disease vectors while allowing oxygen in and CO2 out.

[ Parent | on HN ]