Read this peer reviewed study out of Stanford regarding COVID-19 facemask usage... https://www.scribd.com/document/503573509/Facemasks-in-the-COVID-19-era-A-health-hypothesis-by-Baruch-Vainshelboim …
It's not a study. It's an op-ed in a fringe journal long known for publishing articles pushing antivaccine pseudoscience, HIV/AIDS denialism, and cancer quackery.https://respectfulinsolence.com/2021/04/21/medical-hypotheses-is-back-and-its-pushing-antimask-disinformation/ …