Wearing a face mask can help protect you – not just others from you – from the corona virus, according to the Centers for Disease Control and Prevention.
The CDC’s new guideline renewed its earlier claim The main advantage of wearing a mask Help prevent the bug from spreading to others.
“Adoption of global mask policies will help avoid future locks, especially when combined with other non-pharmaceutical interventions such as social exclusion, hand hygiene and adequate ventilation.” CDC said.
“The preventative benefit of the mask comes from a combination of basic control and personal protection for the mask wearer,” it said.
“The relationship between source control and personal protection is complementary and consistent, thus increasing personal benefit by increasing the use of social masks,” the company says.
“Studies show that filtering cloth mask products can reduce the appearance of infectious droplets, including fine droplets and particle filtration less than 10 microns.”
The CDC also cites a range of “relative filtration efficiencies” provided by various masks based on numerous studies, “largely due to experimental design and analysis at particle sizes.”
“Multiple layers with higher thread counts have demonstrated better performance compared to single layers with lower thread count, in some cases filtering almost 50% of fine particles less than 1 micron,” the CDC said.
Some materials, including polypropylene, can improve filtration efficiency by generating a kind of static electricity, which improves the adhesion of charged particles.
Silk-like materials can “help repel wet droplets and reduce fabric moisture, thus maintaining respiration and comfort,” the company added.
To prevent the virus from being expelled, the CDC stated, “Cloth masks can not only effectively prevent very large droplets (i.e., 20-30 microns and larger), but they can also prevent fine droplets and particles (often referred to as aerosols) from being expelled. Over 10 microns. ”
It said multi-layer fabric masks can prevent up to 70 percent of fine droplets and control the spread of non-captured ones.
“More than 80 percent of human experiments measuring blocking all respiratory droplets have been blocked, and in some studies cloth masks act as barriers to source control alongside surgical masks,” the company said.