A new study came reporting that to prevent corona virus spreading can be protected by wearing a double mask. Let us share that this study was came by the University of North Carolina Health Care shows claimed that wearing two face coverings can nearly double the effectiveness of filtering out SARS-CoV-2-sized particles, preventing them from reaching the wearer's nose and mouth and causing COVID-19.

Here it is to be noted that the findings published in JAMA Internal Medicine also states that the reason for the enhanced filtration is not about adding too many layers of cloth but eliminating any gaps or poor-fitting areas of a mask. Emily Sickbert-Bennett, PhD, associate professor of infectious diseases at the UNC School of Medicine and lead author of the study  said that "The medical procedure masks are designed to have very good filtration potential based on their material, but the way they fit our faces isn't perfect," .

Let us share that according to their findings, the baseline fitted filtration efficiency (FFE) of a mask differs from person to person, due to each person's unique face and mask fit. But generally, a procedure mask without altering the fit is about 40-60 per cent effective at keeping COVID-19-sized particles out. A cloth mask is about 40 per cent effective.

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