Respiratory masks and Community masks comparison of their effect. Other version without lettering: <a href="//commons.wikimedia.org/wiki/File:Breathing_masks.png" title="File:Breathing masks.png">File:Breathing masks.png</a>
<a href="//commons.wikimedia.org/wiki/User:Sciencia58" title="User:Sciencia58">Sciencia58</a>
2020-05-04
<span class="int-own-work" lang="en">Own work</span>, Redrawing, Sources: <a rel="nofollow" class="external autonumber" href="https://www.rheinische-anzeigenblaetter.de/sonderthemen/corona-virus-nrw/corona-virus-welche-schutzmasken-sind-sinnvoll--36535846">[1]</a><a rel="nofollow" class="external autonumber" href="https://www.bfarm.de/SharedDocs/Risikoinformationen/Medizinprodukte/DE/schutzmasken.html">[2]</a><a rel="nofollow" class="external autonumber" href="https://www.baua.de/DE/Themen/Arbeitsgestaltung-im-Betrieb/Coronavirus/FAQ/PSA-FAQ_node.html">[3]</a><a rel="nofollow" class="external autonumber" href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30313-5/fulltext">[4]</a><a rel="nofollow" class="external autonumber" href="https://www.allaboutvision.com/conditions/coronavirus-and-your-eyes/">[5]</a><a rel="nofollow" class="external autonumber" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7108646/">[6]</a><a rel="nofollow" class="external autonumber" href="https://www.nature.com/articles/s41591-020-0843-2">[7]</a>