The article references a study: https://www.pnas.org/content/118/4/e2014564118 https://www.pnas.org/content/118/4/e2014564118 but based on your own contention

The article references a study: https://www.pnas.org/content/118/4/e2014564118 https://www.pnas.org/content/118/4/e2014564118 but based on your own contention, you won't read it, so here's a key sentence from the abstract: The preponderance of evidence indicates that mask wearing reduces transmissibility per contact by reducing transmission of infected respiratory particles in both laboratory and clinical contexts.