[Margaret Pilkington]

Cashy, those masks are specific to the risks that these chemicals pose.
I too spent a portion of my working life wearing a mask, but they were worn appropriately, disposed of carefully and were for the patients protection against and BACTERIA that I might have.
They would not protect the patient against any virus that I might have because these are smaller than 300 nano-microns(Covid is 190 nano-microns)
If you have read the scientific paper, it also states that once a mask is moist it allows for passage of both bacteria and viruses from inside the mask and outside the mask....so it provides a good environment for multiplication and an open door for transmission of the same.
Not sensible, not safe, but let's you think that you are doing something....and is a badge of compliance....which the politicians love.