SINGAPORE: At least 70 percent of people who wear masks regularly can stop the Kovid-19 epidemic, according to a study review Material The duration of used and mask use plays an important role in their effectiveness.
The research, published in the Journal of Physics of Fluids, has assessed studies on masks and examined epidemiological reports on whether an infected person reduces the number of people spreading the pathogen – the number of reproductive viruses.
“A high-performance facemask, such as surgical masks with an estimated efficacy of 70 percent, can lead to the eradication of an infectious disease if at least 70 percent of residents continue to use such masks in public,” scientists including Sanjay wrote in a Kumar study at the National University of Singapore.
“Even low-cost clothing masks can slow the spread if worn consistently,” Kumar said.
According to scientists, an important aspect of face mask function involves the size of liquid droplets emitted from the nose and mouth when the person is speaking, singing, sneezing, coughing or simply breathing.
Larger drops of 5-10 microns are more common, he said, while smaller drops less than 5 microns are more dangerous.
In comparison, scientists said human hair has a diameter of about 70 microns.
In many types of facemasks, such as clothing masks, surgical masks and N95 masks, only the latter can filter aerosol-sized drops, he said.
Researchers said the effect of wearing a face mask on the performance of face masks for several hours, such as health care or other essential workers, can be very effective.
Masks made of hybrid polymer material can filter particles at high efficiency and cool the face simultaneously, as the fibers used in this allow the heat to escape underneath.
“There may be some correlation between respiratory resistance and mask flow inhibition, which needs to be studied for a mask-wearing interval,” said Heo Pueh Lee, another co-author of the study.
“Also, the environmental condition in the masked area needs to be more accurately quantified using miniaturized sensors and the development of human replicas for such studies,” Lee said.
Based on the analysis, researchers have emphasized the importance of consistent use of efficient facemasks, such as surgical masks.

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