Full Story of excerpts below at Source: >Are Face Shields or Face Masks More Effective at Preventing Coronavirus Spread? | PEOPLE.com
“When asked whether they work as well as more traditional face masks, Dr. David Edwards of Harvard University tells PEOPLE that there are “pros and cons” to the plastic coverings. Although they’re “particularly effective” at preventing large airborne respiratory droplets — which could result from a person nearby coughing or sneezing — they don’t do as good of a job with blocking smaller particles, as face shields don’t completely seal off the face. With smaller particles, they don’t travel like bullets, they hover in the air and below that face shield you’re still breathing in that air,” Edwards says.
“However, while face shields can be helpful, and certainly won’t hurt individuals who choose to use them, Edwards still recommends wearing masks — either alone, or in conjunction with the plastic coverings.
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