[conspire] A more-effective face mask as a DIY project

[paulz at ieee.org]

 I well remember the mixed messaging of the early days.  The news said don't wear N95. I looked at the box I had bought a couple years back when we had too many days with smoke filled skies.  
In that same time, an email list for engineers tried to over-analyze N95.  The spec was written to keep out dust particles of a certain size.  But COVID-19 virus was smaller.  Maybe N95 couldn't stop the virus.
Now we understand that most of the problem is droplets of water and virus.  N95 is good, so are many kinds of fabric.
    On Saturday, December 26, 2020, 08:24:38 PM PST, Rick Moen <rick at linuxmafia.com> wrote:  

Afterwards, this topic made me remember February/March, when we came to 
grips with that:  Everyone learned that N95 & equivalent respirators
were protective if fitted, but effectively out of stock, and had other
problems (omitted here), so (most) people fell back on what we could
get, which was a variety of disposible or cloth surgical masks, or
things equivalent to that.


  
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