I found your new favorite video :)
Visualization of breathing with a surgical mask
15sec clip
https://www.youtube.com/watch?v=UzbVw7yYpJM
UK
Matt Hancock says Covid-19 outbreak could force UK to shut down cities
The health secretary tells BBC Ones Andrew Marr Show that the government is considering all options, from closing schools to banning large gatherings of people at sporting events or concerts, if the coronavirus continues to spread in the UK. Asked if it might follow the Chinese strategy of isolating cities with large outbreaks, he said: We dont take anything off the table at this stage
https://www.youtube.com/watch?v=e7fYZmUQcL8