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November 1, 2020 By e-Patient Dave 7 Comments

Great NY Times visualization of how masks work against mists (aka aerosols)

After my previous post Winter’s coming. Time to talk about ventilation for coronavirus defense I’ve been amazed that hardly any businesses I’ve visited are using HEPA filters – or if they are, they’re not touting it. Why??

This is important information, with potentially huge benefits for businesses and customers alike. Why are we all focused on waiting for treatment, when all of us (anywhere on the political spectrum) want two things:

  • Be safe
  • Get back to “as normal as possible” as fast as possible.
[Read more…]

Filed Under: Coronavirus Tagged With: coronavirus, face masks, filters, hepa, masks 7 Comments

September 27, 2020 By e-Patient Dave 12 Comments

Winter’s coming. Time to talk about ventilation for coronavirus defense.

Update Nov 11: see also these related posts –

  • How universal masking minimizes COVID-19 risk (great graphic) May 28
  • Great NY Times visualization of how masks work against mists (aka aerosols) Nov 1
    • For a much deeper dive into the mysteries of aerosols (aka mists), with links to things like National Geographic’s risk calculator, see the Google Doc https://tinyurl.com/FAQ-aerosols maintained by José L. Jiménez (@jljcolorado) and other aerosol specialists.
  • The problem with “herd immunity” as a COVID-19 strategy May 4
  • … and the many informative comments on the original Facebook post, linked in this article, as well as comments on this post.
[Read more…]

Filed Under: Coronavirus Tagged With: air purifiers, coronavirus, covid-19, hepa 12 Comments

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