Do masks work?
[Source and a full screen option]
Comment: Respiratory viruses are mostly transmitted in a form of aerosol. Do masks stop aerosol? Watch this: https://twitter.com/BLNewsMedia/status/1469344474606325770
Do masks work?
[Source and a full screen option]
Comment: Respiratory viruses are mostly transmitted in a form of aerosol. Do masks stop aerosol? Watch this: https://twitter.com/BLNewsMedia/status/1469344474606325770