Health
COVID-19: Which face mask is better?Experts will consider how long the N95 mask should be worn, Science News
According to the latest research displayed in Infectious Disease JournalFace masks help reduce the distance traveled by airborne pathogens by more than half when talking or coughing compared to not wearing a mask.
Since the coronavirus (COVID-19), scientists and health professionals have advocated the use of face masks to control the spread of the virus. A new study by researchers at the University of Central Florida provides insights as the effectiveness of face masks is being discussed.
As cases of Covid continue to increase worldwide due to Omicron variants, protection against the virus should be prioritized.
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Studies have shown that, without a face cover, droplets / aerosols were detected up to 1.25 m during speech and up to 1.37 m during coughing.
In addition, the study states that the use of facial coverings is very effective in reducing the number of aerosols released.
The cloth cover has shortened the maximum axial distance to 0.61 m for speech and 0.67 m for cough.
On the other hand, when using a disposable face cover, the safety distance measured in both emission scenarios was further reduced to 0.15 m.
How long do I need to wear the N95 face mask?
CNN reports that a properly worn N95 face mask better prevents small particles from entering the nose and mouth compared to cloth masks. The materials used to make N95, such as polypropylene fiber, act as a mechanical and electrostatic barrier to shared air.
Can the N95 face mask be reused? This is one of the most discussed topics in the pandemic to date. The relatively high price was one of the reasons people talked about using their N95 multiple times.
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Linsey Marr, a professor of civil and environmental engineering at Virginia Tech, said, “I’ve been wearing it for a week,” as CNN quoted. “The material and filtration capacity of the N95 mask will not decrease unless you physically rub or puncture it. You will have to be in really polluted air … it’s particles. A few days before losing the ability to filter, so you can wear it for a really long time. ”
“People were talking for about 40 hours-I don’t think it’s a problem. In fact, it will grow from your face or the straps will loosen or break too much before you lose filtration capacity,” she said. Added.
Meanwhile, Erin Bromage, an associate professor at the University of Massachusetts at Dartmouth, said the reason why N95 masks are designated as “single-use”, as CNN quoted, is because they are classified for medical use. I am saying. mask.
However, Bromage added that one mask can be used for at least 2-3 days if a person is safely reusing the N95 mask.
Can N95 be reused?
Expert Marr says that if the mask becomes damp, dirty, bent or wrinkled, it needs to be replaced. “The longer you wear it, the more it actually traps the material, which means it starts to lose its breathability, or the resistance of the mask,” says Bromage.
How to disinfect N95?
Ma said the contaminated particles would disappear in a matter of hours to hours. Exposing the N95 to sunlight can cause it to occur sooner.
According to a CNN report, the N95 mask has a special static charge that helps remove the virus, and if a person wants to disinfect it, the water dissipates the charge so that the mask can be washed.
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