“There have been extensive randomized controlled trial (RCT) studies, and meta-analysis reviews
of RCT studies, which all show that masks and respirators do not work to prevent respiratory
influenza-like illnesses, or respiratory illnesses believed to be transmitted by droplets and
aerosol particles.”
…
Source: http://ocla.ca/wp-content/uploads/2020/04/Rancourt-Masks-dont-work-review-science-re-COVID19-policy.pdf
