TFA article says the stuff gets in your lungs and stays there. Are you trying to figure out whether you should wear protection for x% silica containing materials? Seems like a fool's errand.
Not at all, I actually wear a mask when just sweeping the garage. :) I certainly think there should be regulation requiring masks in industries like this — and I will definitely wear a mask the next time I’m around any sort of countertop dust.
I’m mostly just curious about the science, and whether/why it is more binary than I’m understanding, vs. just taking some random HN strangers’ words.
