Properly fitted multilayer masks block 84 per cent of particles expelled by a person wearing it, while two people donning these types of masks can reduce transmission by close to 96 per cent, according to a new study. While wearing a face mask can protect people from COVID-19, scientists, including those from Georgia Institute of Technology in the US, said the type of material, tightness of fit, and the number of fabric layers used can significantly affect exposure risk to the novel coronavirus. The study, published in the journal Aerosol Science and Technology, measured the filtration efficiency of ultrasmall submicron particles passing through a variety of different materials.
The study measured the filtration efficiency of submicron particles passing through a variety of different materials.
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ATLANTA: Wearing a face mask can protect yourself and others from COVID-19, but the type of material and how many fabric layers used can significantly affect exposure risk, found a new study from the Georgia Institute of Technology.
The study measured the filtration efficiency of submicron particles passing through a variety of different materials. For comparison, a human hair is about 50 microns in diameter while 1 millimetre is 1,000 microns in size. A submicron particle can stay in the air for hours and days, depending on the ventilation, so if you have a room that is not ventilated or poorly ventilated then these small particles can stay there for a very long period of time, said Nga Lee (Sally) Ng, associate professor and Tanner Faculty Fellow in the School of Chemical and Biomolecular Engineering and the School
Properly fitted multilayer masks block 84 per cent of particles expelled by a person wearing it, while two people donning these types of masks can reduce transmission by close to 96 per cent, accordin
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Covid-19 Mask Fabric Has Huge Impact On Effectiveness Finds Georgia Tech report
According to a new study by Georgia Tech & Aerosol Science, it has been concluded that Fabric layers and material choice have a huge impact on COVID-19 masks
(Picture Credit: Unsplash/Representational Image)
A new study from Georgia Tech found that wearing a face mask can shield you and others from COVID-19, but the number of fabric layers and the type of cloth used can have a huge impact on the risk of exposure.
Nga Lee (Sally) Ng, who is an associate professor and Tanner Faculty Fellow in the School of Chemical and Biomolecular Engineering and the School of Earth and Atmospheric Sciences, said that the filtration efficiency of submicron particles moving through a variety of materials was calculated in this analysis. A human hair is approximately 50 microns in diameter, while 1 millimetre is 1,000 microns. She explained, A submicron particle can stay in the air for hours and