A paradigm shift to combat indoor respiratory infection
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A paradigm shift to combat indoor respiratory infection
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Re: A paradigm shift to combat indoor respiratory infection
#2So the idea is to make every room a negative pressure room of sorts? I think this is probably long overdue, but I'm afraid I don't really see the paradigm shift.
Haven't all of these steps been taken on airplanes already, to some extent? From what I see, the "personalized ventilation" idea is substantially similar to what aircraft ventilation does, just adapted for a workspace/building setting.
Re: A paradigm shift to combat indoor respiratory infection
#3Re: A paradigm shift to combat indoor respiratory infection
#4What a good read. Shame on the authors for putting such an important article behind a paywall. Thanks someone for filesharing it.
#AbolishCopyrights #AbolishPatents #EndIntellectualStupidity
Re: A paradigm shift to combat indoor respiratory infection
#5So the idea is to make every room a negative pressure room of sorts? I think this is probably long overdue, but I'm afraid I don't really see the paradigm shift. Haven't all of these steps been taken on airplanes already, to some extent? From what I see, the "personalized ventilation" idea is substantially similar to what aircraft ventilation does, just adapted for a workspace/building setting.
What would be the cost implications of this? I assume we're talking about a massive energy requirement/climate impact to implement this for all public indoor spaces.
Re: A paradigm shift to combat indoor respiratory infection
#6So the idea is to make every room a negative pressure room of sorts? I think this is probably long overdue, but I'm afraid I don't really see the paradigm shift. Haven't all of these steps been taken on airplanes already, to some extent? From what I see, the "personalized ventilation" idea is substantially similar to what aircraft ventilation does, just adapted for a workspace/building setting.
It's more important to think about FLOW and also the quality of air exiting an air-handling system. BTW, how often are those ducts cleaned, if ever?
I would personally love a well designed slightly positive pressure dwelling with particle scrubbed inflow and egress (some kind of circulated water system like industrial sites have). Get rid of that pollen and everything else please.
Re: A paradigm shift to combat indoor respiratory infection
#7From the article: "It is not known exactly what fraction of infections could be prevented if all building and transport ventilation systems on the planet were ideal (in terms of controlling airborne infections), or the cost of design and retrofitting to make them ideal."
I think this is the key question. Surely better ventilation would have prevented some infections in the covid pandemic. But how many? And to decide that we need not just manifestos by civil engineers (like this article) but convincing research results, probably in collaboration with people who actually know some things about viruses as well. And without it, could organizations like the WHO or CDC have plausibly recommended building upgrades?
Re: A paradigm shift to combat indoor respiratory infection
#8It seems overly complicated.
Just raise the air exchange per person and or per volume by a significant factor and mandate a very fine particulate filter. You could do many measurements and lots of theory but nobody is going to engineer their buildings like cleanrooms anyway so the results of a lot of science wouldn’t be so good regardless.
Re: A paradigm shift to combat indoor respiratory infection
#9From the article: "It is not known exactly what fraction of infections could be prevented if all building and transport ventilation systems on the planet were ideal (in terms of controlling airborne infections), or the cost of design and retrofitting to make them ideal." I think this is the key question. Surely better ventilation would have prevented some infections in the covid pandemic. But how many? And to decide…
The WHO and CDC have had their head in the sand for 60 years when it comes to airborne pathogens. They have only acknowledged aerosol transmission of covid in the last couple weeks. It was physicists who had to figure out why they were domatically denying reality. https://www.wired.com/story/the-teeny-tiny-scientific-screwu...
Re: A paradigm shift to combat indoor respiratory infection
#10So the idea is to make every room a negative pressure room of sorts? I think this is probably long overdue, but I'm afraid I don't really see the paradigm shift. Haven't all of these steps been taken on airplanes already, to some extent? From what I see, the "personalized ventilation" idea is substantially similar to what aircraft ventilation does, just adapted for a workspace/building setting.
It's more important to think about FLOW and also the quality of air exiting an air-handling system. BTW, how often are those ducts cleaned, if ever? I would personally love a well designed slightly positive pressure dwelling with particle scrubbed inflow and egress (some kind of circulated water system like industrial sites have). Get rid of that pollen and everything else please.
There's an interesting system called "Phenomenal Aire" that I recently installed. It sort of achieves what you're talking about, but uses a very different mechanism called "Cold Plasma Generation" (caused by dielectric barrier discharge). The air smells noticeably "fresher" though that might just be due to the ozone. It does seem to have a dramatic neutralizing effect on VOCs [0].
Interesting article re: use in meat packing plants [1].
[0]: https://www.sciencedirect.com/science/article/abs/pii/S03088...