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 ...

Researchers have developed a membrane that can be attached to a regular N95 mask and replaced when needed. The filter has a smaller pore size than normal N95 masks, potentially blocking more virus ...

Researchers have developed a more efficient membrane filter that can be attached to a regular N95 mask and replaced when needed. The filter has a smaller pore size than normal N95 masks, potentially ...

(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 ...