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A comment on How a razor blade can be damaged as it cuts human hair (2020). Parent comment

Re:How a razor blade can be damaged as it cuts human hair (2... by j-bos on Monday October 03, 2022 @07:04AM (#33065845)
Not sure where you can do it outside the industry, but mask fit tests are required in many (all?) US petrochemical facilities. The test involves an accurate measurement of gases passing through to the mask wearer. Edit: seems you can just buy a kit https://pksafety.com/3m-ft-20-training-and-fit-testing-kit-i...
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Re:How a razor blade can be damaged as it cuts human hair (2... by hilbert42 on Monday October 03, 2022 @05:18PM (#33073837)
Yeah, I'm vaguely aware of this and mask fitting for asbestos removal is almost mandatory in many workplaces.

I suppose, given all the fuss over COVID, I've been rather surprised by casualness over the approach to mask-wearing given that the warning were there on mask packets before the pandemic. I would have thought this would have alerted many to the fact come COVID but seemingly not.

BTW, my attention to detail seems to have paid off so far (I've not caught the disease as yet). Nevertheless, it would have been good to have been able to put some some figures to the practice rather than working anecdotally.

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