4 ms·
Author here. Would your behaviour be different if you knew that a cloth mask lets through 30 to 97% of COVID-19 particles rather than thinking they can filter a
by martingoodson 6y ago
Author here. Would your behaviour be different if you knew that a cloth mask lets through 30 to 97% of COVID-19 particles rather than thinking they can filter almost all infective particles? If so, this article is for you.
(For example, perhaps you would lobby your government to ramp up production of surgical masks for the general population.)