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 ...

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 ...

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 ...

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 ...

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." ...

By design, a surgical mask is intended to prevent physical liquids such as splashes or sprays from blood or sputum from entering the environment. The FDA adds that a surgical mask may be effective ...

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.” ...

It’s hard to think of a symbol of COVID-19 more fraught than the N95 respirator. The mask fits tightly around the face and is capable of filtering 95% of airborne particles, such as viruses ...