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Americans are increasingly being spotted wearing face masks in public amid the coronavirus pandemic, as are people are around the globe.

Soon, the Centers for Disease Control and Prevention (CDC) may advise all Americans to cover their faces when they leave the house, the Washington Post reported.  

The agency is weighing that recommendation after initially telling Americans that they didn't need to wear masks and that anything other than a high-grade N95 medical mask would do little to prevent infection any way. 

FACE MASKS DO HELP PREVENT INFECTION - BUT THEY'RE NOT ALL CREATED EQUAL 

Research on how well various types of masks and face coverings varies but, recently, and in light of the pandemic of COVID-19, experts are increasingly leaning toward the notion that something is better than nothing. 

A University of Oxford study published on March 30 concluded that surgical masks are just as effective at preventing respiratory infections as N95 masks for doctors, nurses and other health care workers. 

It's too early for their to be reliable data on how well they prevent infection with COVID-19, but the study found the thinner, cheaper masks do work in flu outbreaks. 

The difference between surgical or face masks and N95 masks lies in the size of particles that can - and more importantly, can't - get though the materials. 

N95 respirators are made of thick, tightly woven and molded material that fits tightly over the face and can stop 95 percent of all airborne particles, while surgical masks are thinner, fit more loosely, and more porous. 

This makes surgical masks much more comfortable to breathe and work in, but less effective at stopping small particles from entering your mouth and nose. 

Droplets of saliva and mucous from coughs and sneezes are very small, and viral particles themselves are particularly

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