@vik @bigblen I imagine that the fine vapour that can escape around both face shields and most masks is as likely to cause a Covid infection as the droplets large enough to be caught by a face covering. I recently completed a First Aid Certificate course that included a module on proper mask use, which taught me that hardly anyone has an adequate mask and uses it correctly. So IMHO face coverings are mostly public health theatre, and just as pointless as security theatre.
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