barnaclebill thats about as reliable as looking at some strangers youtube channel.
Why would that be more reliable than a proper scientific study.
eg
https://www.pnas.org/content/118/4/e2014564118
I never hear of doctors or nurses not wearing them and tellling there bosses thee a waste of time.
Why would Whitty, Van tam etc lie about it. Why were masks used in USa for flu 100 years ago. Why do Far East wear them regularly. Why in Spain Cyprus etc does everyone comply father than poitnting to unreliable evidence or just being 'look at me '/bolshy. Even if there only 50% effective or 30% effective its worth it.