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Re: Medicines/Supplement that might help 4 coronavirus

Posted by Hugh on May 25, 2020, at 13:28:40

In reply to Re: Medicines/Supplement that might help 4 coronavirus, posted by Hugh on March 31, 2020, at 19:14:19

One layer of a tightly woven cotton sheet combined with two layers of polyester-spandex chiffon -- a sheer fabric often used in evening gowns -- filtered out the most aerosol particles (80-99%, depending on particle size), with performance close to that of an N95 mask material. Substituting the chiffon with natural silk or flannel, or simply using a cotton quilt with cotton-polyester batting, produced similar results. The researchers point out that tightly woven fabrics, such as cotton, can act as a mechanical barrier to particles, whereas fabrics that hold a static charge, like certain types of chiffon and natural silk, serve as an electrostatic barrier. However, a 1% gap reduced the filtering efficiency of all masks by half or more, emphasizing the importance of a properly fitted mask.

https://www.sciencedaily.com/releases/2020/04/200424081648.htm

"While medical masks have limited durability and little potential for reprocessing, face shields can be reused indefinitely and are easily cleaned with soap and water, or common household disinfectants," they wrote. "They are comfortable to wear, protect the portals of viral entry, and reduce the potential for autoinoculation by preventing the wearer from touching their face."

And unlike medical masks, face shields do not have to be removed to communicate with others, they said.

Moreover, they noted a simulation study of influenza virus found face shields reduced viral exposure by 96% when worn within 18 inches of a cough, and when this study was repeated using the recommended distancing protocol of 6 feet, inhaled virus was reduced by 92%.

https://www.medpagetoday.com/infectiousdisease/covid19/86273


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