Category Archives: face mask

How good are face shields? – JAMA

There are a plethora of masks around, homemade as well as store bought. The range of effectiveness is vast. The Journal of the American Medical Association (JAMA) suggests that face shields may be a worthwhile alternative.

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Face shields come in various forms, but all provide a clear plastic barrier that covers the face. For optimal protection, the shield should extend below the chin anteriorly, to the ears laterally, and there should be no exposed gap between the forehead and the shield’s headpiece. Face shields require no special materials for fabrication and production lines can be repurposed fairly rapidly. Numerous companies, including Apple, Nike, GM, and John Deere, have all started producing face shields. These shields can be made from materials found in craft or office supply stores. Thus, availability of face shields is currently greater than that of medical masks.

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Best material for homemade face masks may be combination of two fabrics

If, like me, you have had a problem finding a good face mask for the pandemic times, this info  may solve your problem.

Researchers from the American Chemical Society report that a combination of cotton with natural silk or chiffon can effectively filter out aerosol particles — if the fit is good.

white ceramic sculpture with black face mask

Photo by cottonbro on Pexels.com

In the wake of the COVID-19 pandemic, the U.S. Centers for Disease Control and Prevention recommends that people wear masks in public. Because N95 and surgical masks are scarce and should be reserved for health care workers, many people are making their own coverings. Now, researchers report in ACS Nano that a combination of cotton with natural silk or chiffon can effectively filter out aerosol particles — if the fit is good. Continue reading

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Filed under coronavirus, coronavirus risk, face mask, global pandemic, pandemic, Uncategorized