Posted by alexandra_k on April 5, 2020, at 21:58:16
In reply to Re: NZ prime minister, posted by alexandra_k on April 5, 2020, at 21:35:55
> Surgical masks are composed of three to four layers including spun-bond or meltblown polypropylene (the filter layer), a high-density non-woven layer of polypropylene cellulose/polyester, and layer(s) of melt-blown polypropylene filter material toward the face side.
I don't suppose the masks are made with a medium that supports or sustains bacterial or viral growth. I mean, viruses need to replicate inside human cells. Bacteria need food to grow... Could they grow on debris that has been shed from the mask wearer??
I don't know.
I think there were some studies showing the Coronavirus could survive on hard surfaces for up to a couple days. But I don't know if that was because the droplet was still there (the surface was still wet) or if drying it out kills it.
I don't know.
I guess the trouble with chemical disinfectants or harsh steralising techniques is that they might hasten the disintegration of the fabric. Or potentially put toxins into the mask there the toxins can't escape from the mask.
poster:alexandra_k
thread:1109408
URL: http://www.dr-bob.org/babble/poli/20191212/msgs/1109442.html