Health
New research reveals that cloth masks can block up to 99% of particles; experts say it can stop the spread of COVID-19
In a new study, scientists argue that cloth masks can prevent the spread of COVID-19 by clocking up to 99% of harmful particles. Daily email A Canadian researcher reports that a fabric mask, especially with multiple layers, can block viruses carried by microscopic particles in the air.
When a person coughs or sneezes, a layer of cloth on the face mask can reduce the amount of infectious particles that travel in the air, researchers say. In addition, the layer of cloth can prevent virus-carrying particles from settling on the surface.
The authors of the study found that various combinations of cloth, such as cotton flannel, blocked more than 90% of the particles. In addition, the 3-layer mask can reduce airborne and pathogenic contamination of pathogens by up to 99%.
Researchers do not guarantee that cotton masks are in fact completely protected from SARS-CoV-2, but they do reveal the results of their studies on the efficiency of cotton masks in closing potentially harmful particles. Insist.
In addition, their review suggests that the fabric may block particles, and even aerosol-sized particles, which they support in Canadian public health policy on the issue, they say. Their research results were published in medical journals Internal medicine annual report..
Also read: Scientists Show How To Make 80-90% DIY Masks That Are As Effective As Surgical Masks
Water drops can be blocked with a cloth
of Center for Disease Control and Prevention And the National Institutes of Public Health both advocate the use of cloth masks in open spaces.
Researchers have found that cloth can block more than 5 micrometers in diameter. This means that the particles loaded with the virus released by the infected mask wearer will be retained in the mask, further preventing the virus from floating in the air or staying on the surface. ..
The team investigated the evidence for masks from nearly 100 years of research and found strong evidence of reduced air and surface pollution using cloth and cloth-based covers.
According to the author, masks are not individually checked for all pathogens. Furthermore, filtration efficiency depends on particles of various sizes, regardless of the pathogens they carry.
Ah Research since 2010 Suggests that the filtration efficiency of cotton in everyday clothing, such as scarves, t-shirts, and sweatshirts, may be only 10-40% due to the different filtration rates of the fabric.
Respiratory distress due to wearing a mask
However, experts say that wearing multiple layers of cloth on the face can have one dangerous drawback. It makes it It ’s harder to breathe..
According to Catherine Class, the first author of the study, the extra layers give the wearer more protection both inside and outside, but make it harder to breathe. She recommends it Person with condition Children under 2 years are not recommended to wear a mask.
Earlier studies have shown that cloth masks can block infectious particles, but researchers emphasize that homemade masks are not equivalent to medically certified alternatives to personal protective equipment. I am.
In their paper, the team was aware of the potential for unintended consequences, such as the use of formal personal protective equipment by the public, improper use of cloth masks, and reduced hand hygiene due to false comfort. Is also mentioned. They claim that these can be avoided by distributing personal protective equipment, public education, providing a clear message, and controlling social pressure.
In addition, they advocate for the public to create and use cloth masks, which also changes the cost of public health interventions from society to individuals. They add that such practices are unpleasant for people living in poverty and low resource areas.
Also read: Are face masks effective against COVID-19? Pros and cons
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What Are The Main Benefits Of Comparing Car Insurance Quotes Online
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