From April 2020 WHO article on masks… there is currently '''no evidence that wearing a mask (whether medical or other types)
by healthy persons in the wider community setting, including
universal community masking, can prevent them from
infection with respiratory viruses, including COVID-19.' https://''www.who.int/publications-detail/advice-on-the-use-of-masks-in-the-community-during-home-care-and-in-healthcare-settings-in-the-context-of-the-novel-coronavirus-(2019-ncov)-outbreak SCIENCE!!!