One common concern about cloth face masks is the level of filtration they provide. The fabric’s mesh is often too open to filter out smaller particles such as smoke, dust, or viruses. A popular ...

(Nanowerk Spotlight) Triggered by the COVID-19 pandemic, the surge in demand for surgical masks and respirators has led to a global manufacturing rush. However, not all mask filter materials are ...

As multiple wildfires continue to burn across Canada and the western United States, millions of people are being exposed to hazardous levels of air pollution. “Smoke carries a lot of particulates, and ...

Coronaviruses, like other viruses, are tiny — far too small to get caught in most textiles. To prevent them penetrating a mask filter, engineers have to use various physical tricks. Whenever several ...