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publius (publius@mastodon.sdf.org)'s status on Saturday, 22-Feb-2025 08:04:38 JST publius

@andymoose
I hate to tell you this, but 75 years ago there were articles in ARCHITECTURAL RECORD about indoor air quality — electrostatic precipitation, best practices for installing germicidal UV lamps in air ducts, and so on.

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  publius (publius@mastodon.sdf.org)'s status on Saturday, 22-Feb-2025 11:13:36 JST publius
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  - Rich Felker
  - LisPi
  @lispi314 @andymoose @dalias
  Electrostatic precipitation is frequently paired with cyclone separation, with the cyclone getting the coarser particles and the electrostatic getting the finer particles.
  In general, anything that reduces overall particulate load contributes to biosafety.
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  Rich Felker (dalias@hachyderm.io)'s status on Saturday, 22-Feb-2025 11:13:36 JST Rich Felker
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  - LisPi
  @publius @lispi314 @andymoose Incidentally, plasma channel just did electrostatic precipitation of *water* (fog) (!)
  
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  publius (publius@mastodon.sdf.org)'s status on Saturday, 22-Feb-2025 11:13:38 JST publius
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  - Rich Felker
  - LisPi
  @lispi314 @andymoose @dalias
  High Efficiency Particulate Air filters were developed for the Atomic Energy Commission in the early 1950s, and for a long time they cost too much for use outside laboratories and other specialized facilities.
  Electrostatic precipitation is not an "absolute" filtering technology, but it remains very useful for dust control in bulk air handling.
  
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  LisPi (lispi314@udongein.xyz)'s status on Saturday, 22-Feb-2025 11:13:38 JST LisPi
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  - Rich Felker
  @publius @dalias @andymoose > Electrostatic precipitation is not an "absolute" filtering technology, but it remains very useful for dust control in bulk air handling.
  
  I see. Is it enough to contribute to biosafety efforts (which those UV lights and HEPA do) or does it mainly interact with too coarse/large dust particles?
  
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  LisPi (lispi314@udongein.xyz)'s status on Saturday, 22-Feb-2025 11:13:39 JST LisPi
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  - Rich Felker
  @publius @dalias @andymoose > electrostatic precipitation
  
  Oh, is that the alternative that was used prior to HEPA-style filters being an option?
  
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  Rich Felker (dalias@hachyderm.io)'s status on Saturday, 22-Feb-2025 11:16:08 JST Rich Felker
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  - LisPi
  @lispi314 @andymoose @publius https://www.youtube.com/@PlasmaChannel
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    Plasma Channel
    
    Hi, I'm Jay. Plasma physics is more than a science to me - it's a tool for the future, and a source of inspiration for us all to reach further. This channel represents my passion for High Voltage physics, and contains a growing catalogue of any high voltage process, application, or discovery that you can think of. I'm currently based in Seattle, WA, but broadcast globally. For all business inquiries: use below email. If you so choose to mail me an item to display on an episode, I will provide mailing addy via email. "Your ancestors called it magic. You call it science. I come from a place where they are one in the same"
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  LisPi (lispi314@udongein.xyz)'s status on Saturday, 22-Feb-2025 11:16:10 JST LisPi
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  - Rich Felker
  @dalias @andymoose @publius Plasma channel?
  
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