Seeing it on TV trumps all his experience and supposed expertise, he said, commenting on Hot Off the Press: Masks Don’t Work”
[I speak as] health and safety manager of a commercial and residential painting and decorating business. Someone who needs to understand how to mitigate a bunch of different airborne toxins. Whether that be dust particles, lead or asbestos, or solvents and other chemicals. I was pretty shocked when we were told a dust mask, or worse a handkerchief would stop tiny liquid respiratory droplets. Because that isn’t how masks like N95/P2 even work. They stop solid dust particles, not gasses or liquids.
But I was even more concerned about how I was suddenly wrong about such a vital part of my job and how students in cafes and new migrants at supermarket checkouts suddenly knew more than me about it. Even when I explained the science to the best of my understanding. They knew more because the experts said so on TV.
Of course.
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Blithe Spirit 
[I speak as] health and safety manager of a commercial and residential painting and decorating business. Someone who needs to understand how to mitigate a bunch of different airborne toxins. Whether that be dust particles, lead or asbestos, or solvents and other chemicals. I was pretty shocked when we were told a dust mask, or worse a handkerchief would stop tiny liquid respiratory droplets. Because that isn’t how masks like N95/P2 even work. They stop solid dust particles, not gasses or liquids.
But I was even more concerned about how I was suddenly wrong about such a vital part of my job and how students in cafes and new migrants at supermarket checkouts suddenly knew more than me about it. Even when I explained the science to the best of my understanding. They knew more because the experts said so on TV.