Re: Helmet efficacy test

On Wed, 16 Apr 2025 11:12:27 -0400, Frank Krygowski
<frkrygow@sbcglobal.net> wrote:

On 4/16/2025 8:47 AM, AMuzi wrote:

On 4/16/2025 4:25 AM, John B. wrote:

 
I have no idea what Mr Fauci said about anything but I would comment
that doctors and medical staff wear them in Thailand, Singapore,
Indonesia, and medical evacuation airplanes to my personal experience.

 
I agree it's a popular custom. but the size of viruses and the pores of
masks make that theater at best.

>
I disagree. It's apparently a common fallacy that a filter's pore size
must be smaller than particle size for the filter to work, but that's
simply not the case.
>
Plus, as Fauci noted, with airborne diseases, you're not typically
dealing with a naked virus particle floating in air. You're dealing with
tiny drops of fluid that contain viruses. If those impact a filter
fiber, they stick, even if there's an adjacent pore that's larger than
the diameter of the drop.
>

If you can breathe without difficulty and if it's not well sealed at the
edges, you're not blocking viruses.

>
You're not blocking 100% of them. I see this argument as yet another
example of "this measure is not perfect, so let's pretend it's
worthless." You, Andrew, have applied that quasi-logic to many laws in
discussions here.
>

Regular hospital masks can be and probably are effective for bacteria
but the size scales are radically different for viruses.

>
Most medically trained people seem to disagree.

The ones that tell you what to think and do, perhaps.

--
C'est bon
Soloman