“Both masks and body speed are important,” said Professor Krishna Kota (Representative)
Washington:
Wearing a face mask may not protect you from catching the novel coronavirus, which causes COVID-19, if you do not maintain physical speed, according to a study.
The research, published in the journal Physics of Fluids, tested how five different types of mask products affected the spread of SARS-CoV-2 virus-carrying droplets when we cough. or sneezing.
All the material produced by the researchers significantly reduced the number of droplets removed.
However, there were still many drops that could cause the viral illness making it through several of the products when body speed was less than six feet, they said.
“A mask will definitely help, but if the people are very close, there is still a chance to spread or contract the virus,” said Krishna Kota, an associate professor at New Mexico State University in New Mexico. in the US.
“It’s not just masks that help. It’s both the masks and the speed,” Mr Kota said.
The researchers developed a device that uses an air generator to simulate human coughs and sneezes.
The generator was used to blow tiny particles, such as the air droplets by coughing and coughing, through laser beams into a tight square tube with a camera.
They blocked the flow of the droplets in the tube with five different types of materials – regular cloth, double-layer cloth mask, double-layer wet cloth, surgical mask, and N-95 air-conditioning device.
Each of the masks captured most of the droplets, ranging from the regular cloth mask, which allowed about 3.6 percent of the drops to pass through, to the N-95 mask, which statistically stopped 100 percent of the drops.
The researchers noted that, at distances of less than six feet, even those small percentages of drops can be enough to get someone sick, especially if a person with COVID-19 sneezes or sneezes. cough several times.
According to the researchers, one sneeze can carry up to 200 million small viral grains, depending on how sick the carrier is.
They noted that even if a mask blocks a large percentage of these grains, it can be enough to escape to get someone sick if that person is close to the vehicle.
“Without a face mask, it is almost certain that many foreign germs will move to the affected person,” Mr Kota said.
“Wearing a mask provides great protection, but it is not complete, for a person who tends to reduce the amount of foreign air snow and cough drops that would enter the person without the mask. , “he said.
Mr Kota said people should try to reduce or avoid face-to-face or face-to-face interactions.
(Except for the headline, this story was not edited by NDTV staff and is published from syndicated food.)