The researchers filmed the deluge of droplets gushing from our mouths and noses when we speak, cough, and sneeze.
In less than two minutes, the video shows how different masks block the inevitable purge of particles in the air, compared to no mask. The results, also recently published in the medical journal. Chest, It underlines the critical importance of wearing masks in the midst of a newly emerged pathogenic virus that is spread mainly by airborne transmission between people. Masks reduce the amount of coronavirus particles that an infected person expels into the air, protecting others, and there is also more protection.
The main conclusions of the study are:
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When speaking, even wearing a single-layer mask significantly limits the exhalation of drops.
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For coughing and sneezing, a double-layer mask is much more effective than a single-layer mask.
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In general, the more layers a mask has, the better. The researchers suggest “at least three layers” and found that surgical masks performed better in this study, although not everyone has access to these masks.
In the first 50 seconds of the video, someone counts up to 10 in slow motion, which the researchers captured with a high-speed camera. The video below shows someone coughing and then sneezing. Without a mask, an extreme amount of particles is released into the air.
There is still no proven vaccine or therapeutic medications (to help people recover from COVID-19) yet, so masks are vital to slowing the spread of this respiratory disease, according to leading infectious disease experts in the US. USA
“We are not helpless against COVID-19,” Dr. Robert R. Redfield, CDC Director. Cloth liners are one of the most powerful weapons we have to slow and stop the spread of the virus, particularly when used universally in a community setting. All Americans have a responsibility to protect themselves, their families, and their communities. “
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