Mask modifications enhance filtration
Researchers at the University of North Carolina (UNC) School of Medicine working with Environmental Protection Agency scientists tested consumer-grade masks and improvised face coverings to determine how effective they can be at protecting individuals from airborne particles of similar size to those carrying SARS-CoV-2. According to their research, improving the fit of many consumer-grade masks and face coverings using household items such as rubber bands and hair clips can raise the filtration efficiency of these devices near to that of surgical masks. (UNC Healthcare news release, 12/11/20)