Which people? Everything I've read says the point of masks is to prevent airborne droplets, (that said nanoscale particles hitch a ride on). Does it make more

Which people? Everything I've read says the point of masks is to prevent airborne droplets, (that said nanoscale particles hitch a ride on). Does it make more sense to think of a cloth mask filtering droplets in the 10um range? E.g. https://www.ucsf.edu/news/2020/06/417906/still-confused-about-masks-heres-science-behind-how-face-masks-prevent https://www.ucsf.edu/news/2020/06/417906/still-confused-abou...