So EPFL and Empa researchers designed a polymer membrane for the surgical masks. Because the polymer fibers are just 100 nanometers apart (about 1/1,000th the width of a human hair), the pores are ...

Their new design uses a cotton shell and allows the ... a better-fitting alternative to some of the other patterns for surgical masks circulating on the internet. (For the full details on how ...

The FDA added, however, that a surgical mask “by design, does not filter or block very small particles in the air that may be transmitted by coughs, sneezes, or certain medical procedures.” ...

Sophomore Jerry Zhang was designing a new surgical mask for an undergraduate competition, and he needed help. Bhrugubanda, who had worked on computer-aided design for his high school robotics team, ...

The filtration efficiency of the three-layer surgical mask can vary from 65% (if new ... Xi said. As Machine Design’s content lead, Rehana Begg is tasked with elevating the voice of the design ...

For H1N1 influenza, surgical masks again met noninferiority criteria versus the N95 respirator (8.0% versus 11.9%, P=0.18). Design may have accounted for the discrepancy between the trials ...

Surgical masks. Leana Wen, an emergency physician and ... and is shaped outwardly like a duck's mouth. The design was created to offer more breathability. Certain manufactures will include ...

And they emphasise: “There is a need for more evidence to inform safer cloth mask design, and countries should ensure adequate manufacturing or procurement of surgical masks.” ...

Researchers assessed the fit of surgical and KN95 masks ... "We hope these results can be used in the design of future masks, in order to ensure that they are as tight to the face as possible ...

The study also looked at the effect of using cloth instead of surgical masks ... health experts and religious figures to design ways to promote mask use at a community level." ...