Originally Posted by
big john
They want us to wear it to prevent us from spraying droplets, not to protect ourselves. The tape is a good idea, though.
I'm all in favor of masks, but I have had some trouble finding a clear concept in all the discussion. The big concern at the supermarket etc. seems to be aerosol-size droplets, which are just carried by one's breath and my impression is the mask impedes the flow of breath and causes some of that moisture to precipitate out on the fabric. If that's true, a seal means something, at least.