Most of the country has lifted mask guidelines, but masks remain helpful in many cases.
if a healthy person in an N95 spends 20 minutes right next to an infected person wearing a surgical mask, they have less than a 1 percent chance of catching COVID. If neither were masked, the healthy person would have a 90 percent chance of catching the virus.
The same rules of thumb from above hold true: While cloth masks reduce your risk of transmitting COVID, respirators come close to eliminating it.. Researchers brought test subjects into a lab, gave them a variety of face masks, and recorded them speaking and coughing in front of a camera normally used to study the movement of jet fuel.
Surgical masks cut that down to about half a foot. The study didn’t even illustrate the effect of N95 respirators, Ahmed says, because there was nothing to see. Effectively no particles escaped.A mask works only if you actually wear it. Make sure it’s comfortable and fits well. You might have to try on a few different versions, though Schabacker notes that many drug stores now offer free N95s from the federal government.
And make a point of wearing a mask in situations where it matters most. In a paper titled “COVID-19 false dichotomies,”, a team of public health researchers, virologists, and epidemiologists argued that policymakers should seek a middle ground between universal masking and no mask requirements at all. “Not all settings and activities allow mask wearing or confer the same risk of SARS-CoV-2 infection,” the team wrote.
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