<div dir="ltr">Bob,<div><br></div><div>I suspect that the encapsulation of the naked viron by mostly water molecules with some nano-level structure? will result in a distribution of infected blobs of varying sizes and shapes</div><div>Some of these will be big-enough blobs to be both stopped by simple masks and also "heavy enough" to be filtered-out by distance due to gravity</div><div>Some of them will be too small for most filters to stop them</div><div>Probably the majority are big-enough for just-under submicron filtration [N-95] to do some good -- assuming that the inhalation phase of breathing goes through the mask's filtration and not around it -- this is just the reverse of the mask problem faced by people inside of a semiconductor fab</div><div><br></div><div>Anyway -- one of the areas which needs research is how best to characterize what is emitted by the "sickos" and what is actually in the air which needs to be filtered and/or "killed"</div><div>For some as yet unfathomable reason a top-level NRC committee designed to speed-up the reopening of the National Labs -- dismissed all of the above -- with no mention in their final report</div><div>Led by the Prof. Peter Fisher, former chair of the Physics Dept at MIT -- someone who should know better</div><div><br></div><div>Ted</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Jan 6, 2023 at 1:15 PM Robert Primak <<a href="mailto:bobprimak@yahoo.com">bobprimak@yahoo.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:13px"><div></div>
<div dir="ltr">Agreed that indoor air in many buildings could be cleaned up a lot. This issue needs a lot of work, and not enough attention has been paid.</div><div dir="ltr"><br></div><div dir="ltr">As for not screening out the virus, COVID-19 is not spread by naked viruses. It is spread on droplets in aerosols. N95 and KN95 masks, if worn correctly will filter out nearly all the infectious agent in this context.</div><div dir="ltr"><br></div><div dir="ltr">Buit due to early shortages, government and medical advice has been to wear just about any face covering. This has not stopped the spread of COVID-19.</div><div dir="ltr"><br></div><div dir="ltr">So I'll go along with your suggestion that indoor air filtering needs to be upgraded. Not just for COVID reasons, but also for allergy reasons, as well as "sick building syndrome". This also getsa into how much outside air needs to be exchanged with indoors air to make the buildings less "sick". </div><div dir="ltr"><br></div><div dir="ltr">-- Bob Primak </div><div dir="ltr"><br></div><div><br></div>
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On Friday, January 6, 2023 at 12:06:52 PM EST, Ted Kochanski <<a href="mailto:tedpkphd@gmail.com" target="_blank">tedpkphd@gmail.com</a>> wrote:
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<div><div id="m_-4235772086709726026yiv3691938219"><div><div dir="ltr">John,<div><br clear="none"></div><div>Interesting except for the comment about masks</div><div>“Wearing masks may have a dual protective role,” says Bleier. “One is certainly preventing physical inhalation of the [viral] particles, but also by maintaining local temperatures, at least at a relatively higher level than the outside environment.”<br clear="none"></div><div><br clear="none"></div><div>The kind of a mask that can prevent physical inhalation of "naked virons" needs to be carefully fitted, have an internal positive pressure and has a filtering capacity beyond HEPA </div><div>Now some less capable masks can filter out the small blobs of "stuff" infected with the virus -- but even that kind of a mask is not something you will want to wear for extended time</div><div><br clear="none"></div><div>No -- we are all missing the opportunity to focus on cleaning the indoor air -- make indoor air inhospitable for the virus as the "great outdoors" and you will dramatically decrease colds, flu, covid and probably other airborne viral disease</div><div><br clear="none"></div><div>Ted</div></div><br clear="none"><div><div id="m_-4235772086709726026yiv3691938219yqt09997"><div dir="ltr">On Thu, Jan 5, 2023 at 8:14 PM john rudy <<a rel="nofollow noopener noreferrer" shape="rect" href="mailto:jjrudy1@comcast.net" target="_blank">jjrudy1@comcast.net</a>> wrote:<br clear="none"></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div lang="EN-US"><div><p><span style="font-size:12pt;font-family:Arial,sans-serif">Interesting article from WIRED<u></u><u></u></span></p><p><span style="font-size:12pt;font-family:Arial,sans-serif"><a rel="nofollow noopener noreferrer" shape="rect" href="https://www.wired.com/story/why-do-you-get-sick-in-the-winter-blame-your-nose/?bxid=5bf82a6624c17c5aa3198362&cndid=28192571&esrc=bouncexmulti_first&source=EDT_WIR_NEWSLETTER_0_DAILY_ZZ&utm_brand=wired&utm_campaign=aud-dev&utm_content=WIR_Daily_010223&utm_mailing=WIR_Daily_010223&utm_medium=email&utm_source=nl&utm_term=P2" target="_blank">https://www.wired.com/story/why-do-you-get-sick-in-the-winter-blame-your-nose/?bxid=5bf82a6624c17c5aa3198362&cndid=28192571&esrc=bouncexmulti_first&source=EDT_WIR_NEWSLETTER_0_DAILY_ZZ&utm_brand=wired&utm_campaign=aud-dev&utm_content=WIR_Daily_010223&utm_mailing=WIR_Daily_010223&utm_medium=email&utm_source=nl&utm_term=P2</a><u></u><u></u></span></p><p><span style="font-size:12pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p><p><span style="font-size:10pt;font-family:Arial,sans-serif">John Rudy<u></u><u></u></span></p><p><span style="font-size:10pt;font-family:Arial,sans-serif">781-861-0402<u></u><u></u></span></p><p><span style="font-size:10pt;font-family:Arial,sans-serif">781-718-8334 (cell)<u></u><u></u></span></p><p><span style="font-size:10pt;font-family:Arial,sans-serif"><a rel="nofollow noopener noreferrer" shape="rect" href="mailto:John.rudy@alum.mit.edu" target="_blank">John.rudy@alum.mit.edu</a> <u></u><u></u></span></p><p><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u> <u></u></span></p><p><span style="font-size:10pt;font-family:Arial,sans-serif">13 Hawthorne Lane<u></u><u></u></span></p><p><span style="font-size:10pt;font-family:Arial,sans-serif">Bedford, MA 01730-1047<u></u><u></u></span></p><p><img id="m_-4235772086709726026yiv3691938219m_-401041524938965520Picture_x0020_1" border="0" width="99" height="94" style="width: 1.0312in; min-height: 0.9791in;" src="cid:185884cebab4cff311"><span style="font-size:10pt;font-family:Arial,sans-serif"><u></u><u></u></span></p><p><u></u> <u></u></p></div></div>===============================================<br clear="none">
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