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The Clubhouse Bar
[COVID-19] General Discussion
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<blockquote data-quote="Which Tyler" data-source="post: 1070537" data-attributes="member: 73592"><p>Sorry, I've editted my post without realising you've replied.</p><p>There are fake certificates, you can't trust it, and even if a genuine KN95, that's a different standard to N95, which in turn is a different standard to FFP2 - they're broadly similar, but not interchangeable - despite what their sellers want everyone to think.</p><p></p><p>Falling apart is an absolutely terrible measure - unless your eyesight is good enough to tell the structure down to 0.3 microns (hint, you can't see anything below about 30 microns).</p><p></p><p>Yes, it's your judgement, but it's not science.</p><p></p><p>You can use headbands on any masks, there's a huge variety of options to improve the fit of a mask - how important the fit is depends on the individual situation. Masks are worn to significantly reduce the amount of virus particles breathed out by an infected person, an poorly fitted cloth masks still reduces this by >50% - which is fine for most situations, closer contact, indoor and prolonged time frames will make that not enough. A good fitting FFP2 mask will still leak in those same situations, just less. A fitted (actually pinched across the nose, actual elastic at the sides) IIR mask is fine for something like 1-2 hours in terms of the fit.</p><p></p><p>I've worn IIR masks for the past 21 months, including at work in close contact with patients, I'm also yet to test positive (testing twice a week since what? May?). N=1 is anecdote. Using that to confirm your sense of security is a pretty good definition of a false sense of security.</p><p></p><p>I fully agree that the government can and should do something about fake certificates - but until they do, you can't trust anything with a Chinese certification.</p><p></p><p></p><p>I'm not saying "don't wear an FFP2" - I'm saying that you're not wearing an FFP2, probably not even fresh out of the box. I'm also saying that IMO you're putting too much weight and trust in them - even were they genuine.</p><p>It's your risk assessment, and that's fine, but you're also getting your knickers twisted about other people having a different risk assessment, regardless of their knowledge level.</p></blockquote><p></p>
[QUOTE="Which Tyler, post: 1070537, member: 73592"] Sorry, I've editted my post without realising you've replied. There are fake certificates, you can't trust it, and even if a genuine KN95, that's a different standard to N95, which in turn is a different standard to FFP2 - they're broadly similar, but not interchangeable - despite what their sellers want everyone to think. Falling apart is an absolutely terrible measure - unless your eyesight is good enough to tell the structure down to 0.3 microns (hint, you can't see anything below about 30 microns). Yes, it's your judgement, but it's not science. You can use headbands on any masks, there's a huge variety of options to improve the fit of a mask - how important the fit is depends on the individual situation. Masks are worn to significantly reduce the amount of virus particles breathed out by an infected person, an poorly fitted cloth masks still reduces this by >50% - which is fine for most situations, closer contact, indoor and prolonged time frames will make that not enough. A good fitting FFP2 mask will still leak in those same situations, just less. A fitted (actually pinched across the nose, actual elastic at the sides) IIR mask is fine for something like 1-2 hours in terms of the fit. I've worn IIR masks for the past 21 months, including at work in close contact with patients, I'm also yet to test positive (testing twice a week since what? May?). N=1 is anecdote. Using that to confirm your sense of security is a pretty good definition of a false sense of security. I fully agree that the government can and should do something about fake certificates - but until they do, you can't trust anything with a Chinese certification. I'm not saying "don't wear an FFP2" - I'm saying that you're not wearing an FFP2, probably not even fresh out of the box. I'm also saying that IMO you're putting too much weight and trust in them - even were they genuine. It's your risk assessment, and that's fine, but you're also getting your knickers twisted about other people having a different risk assessment, regardless of their knowledge level. [/QUOTE]
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