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appalachiablue

(41,127 posts)
Wed Jul 28, 2021, 04:42 PM Jul 2021

Double Mask: No Gaps, Good Seal, 'Snug Fit' To Protect Against Covid, Study; Dr. Fauci, VIDEO



CNN, 'Check your fit on that double mask if you want it to work against Covid, study says,' *Fri April 16, 2021. -Ed. (SEE Video Below)

(CNN) Check the fit on that double mask if you want to be better protected against the novel coronavirus, a new study says. That's because the extra protection double-masking provides isn't so much about adding layers of cloth, but eliminating any gaps or poor-fitting areas of a mask, according to lead author Emily Sickbert-Bennett, assoc. professor of infectious diseases at the UNC School of Medicine. The study was published Friday in JAMA Internal Medicine.

"We've found that wearing 2 loosely fitted masks will not give you the filtration benefit that one, snug-fitting ... mask will," Sickbert-Bennett said in a statement. "The best kind of double-masking is when you and the person you are interacting with are each correctly wearing a very snug-fitting mask," she said.

- How to double-mask. Typically, double-masking involves placing a disposable surgical or medical-grade mask underneath a cloth mask. Disposable surgical masks are made of 3 layers of nonwoven fabric typically made from plastic. The colored top layer of fabric is made of medical-grade spunbond polypropylene, which is a resin polymer that's heat-bonded into a weblike structure. Surgical masks are made with nose wires that can be used to better fit the mask to the face (and protect your glasses from fogging).

You can make a disposable mask fit better, the CDC says, by knotting the ear loops where they join the edge of the mask, and then folding and tucking the unneeded material under the edges. The CDC has a video here to show you how. When you choose your cloth mask, it should be of 2- or 3-ply cloth with a tight weave, according to studies. Use the light test to check the weave: If you can easily see the outline of the individual fibers when you hold up the mask to light, it's not likely to be effective.
Choose cloth masks with nose wires, the CDC says, and then "bend the nose wire over your nose to fit close to your face."...Read More + VIDEO,
https://www.cnn.com/2021/04/16/health/double-mask-fit-covid-wellness/index.html
_________
- CDC, 'Maximizing Fit for Cloth & Medical Procedure Masks to Improve Performance & Reduce Covid-19 Transmission & Exposure, Feb. 19, 2021,
https://www.cdc.gov/mmwr/volumes/70/wr/mm7007e1.htm



- Feb. 2021.



- Double Masking May Offer Extra Covid Protection, NBC News, Jan 26, 2021.
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Double Mask: No Gaps, Good Seal, 'Snug Fit' To Protect Against Covid, Study; Dr. Fauci, VIDEO (Original Post) appalachiablue Jul 2021 OP
Experts: 2 Layered Masks, or 1 Med. N-95 Respirator appalachiablue Jul 2021 #1

appalachiablue

(41,127 posts)
1. Experts: 2 Layered Masks, or 1 Med. N-95 Respirator
Wed Jul 28, 2021, 07:58 PM
Jul 2021

that meets US FDA, or NIOSH (CDC) standards and is not counterfeit/fake.



- 3M Disposable Particulate Respirator, NIOSH, 9010: Amazon online.

https://www.amazon.com/3M-Disposable-Particulate-Respirator-50-count/dp/B0076HIPCU

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