Posted on 09/25/2020 4:52:23 PM PDT by conservative98
Laboratory tests of surgical and N95 masks by researchers at the University of California, Davis, show that they do cut down the amount of aerosolized particles emitted during breathing, talking and coughing. Tests of homemade cloth face coverings, however, show that the fabric itself releases a large amount of fibers into the air, underscoring the importance of washing them. The work is published today (Sept. 24) in Scientific Reports.
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Without a mask, talking (reading a passage of text) gave off about 10 times more particles than simple breathing. Forced coughing produced a variable amount of particles. One of the volunteers in the study was a superemitter who consistently produced nearly 100 times as many particles as the others when coughing.
In all the test scenarios, surgical and N95 masks blocked as much as 90 percent of particles, compared to not wearing a mask. Face coverings also reduced airborne particles from the superemitter.
Homemade cotton masks actually produced more particles than not wearing a mask. These appeared to be tiny fibers released from the fabric. Because the cotton masks produced particles themselves, it's difficult to tell if they also blocked exhaled particles. They did seem to at least reduce the number of larger particles.
(Excerpt) Read more at medicalxpress.com ...
We love fresh pineapple. Just for kicks, I looked up its health benefits; BOOM! That stuff can help prevent or ameliorate viruses, arthritis, infections, cancer. It’s amazing! My husband has emphysema and type two diabetes, spinal stenosis and arthritis. We usually have fresh pineapple almost every day, unless we run out. It can’t hurt, and it may help. :)
An improperly worn N95 mask is useless - all men need to shave off facial hair for starters, otherwise it will not seal - but people will know this because they have attended a short course on mask wearing .., haven’t they?
N95 masks are dust masks and only became temporarily approved for covid because they were still available while other masks had run out.
Yes.
If that's true shouldn't there be lint covering everything on the surface of the earth, and particularly in the CNN news room?
There is.
Ever sat and watched the dust motes dance in a sunbeam?
Ever dusted a room?
There is a lot of dust out there and a lot of it is fabric fibers. Also a lot of dead skin and hair, both pet and human.
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