Posted by Deutz Lover on February 27, 2020 at 10:06:41 from (66.172.80.74):
In Reply to: Dust mask posted by 37 chief on February 27, 2020 at 09:03:24:
Horrible Freight has several types including Niosh N95.
These filter out 95 percent of particles over 0.3 microns. The coronavirus particle is 0.1 to 0.2 microns so it may filter out some, but not all virus particles. According to recent information the virus is spread mostly by contact. The masks keeps people from touching their mouth and nose. Workers wearing N95 repirators at Wouhan hospital did not get coronavirus. At least ten of the workers at the hospital not wearing repirators came down with coronavirus yet those wearing repirators came into patient contact 7.5 times more often. If this information is correct then masks do help.
A red blood cell is about 3 microns by 7 microns. Most bacteria are over 0.3 microns.
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Today's Featured Article - An AC Model M Crawler - by Anthony West. Neil Atkins is a man in his late thirties, a mild and patient character who talks fondly of his farming heritage. He farms around a hundred and fifty acres of arable land, in a village called Southam, located just outside Leamington Spa in Warwickshire. The soil is a rich dark brown and is well looked after. unlike some areas in the midlands it is also fairly flat, broken only by hedgerows and the occasional valley and brook. A copse of wildbreaking silver birch and oak trees surround the top si
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