RE: Happy March 1st 🌸 (end of mask mandate in Vienna)
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true, data is always changing, my approach is when it is so hard to prove something than maybe the effect is not that great in practice, I think a face mask can indeed be very helpful against dust and when you do construction work at home for example :)
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Against dust, it is indeed effective. That’s my experience.
I use mask when I do dusting at my home