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 ...

You walk into the wood shop and are standing by the table saw while Bob, the carpenter, is getting ready to cut some boards. "You might want to put this dust mask on," says Bob as he hands you a paper ...

N95 masks look simple enough: two outer layers of fabric that form the shape of the mask, with a thin filter between. It's that sandwiched inner layer that complicates the mask's construction and ...

Simon Smith has a long history of developing personal protective equipment (PPE) for industrial, health-care, military, emergency response, and other applications. He specializes in respirator filters ...

SEATTLE - Western Washington continues to be in the red as air quality across Puget Sound is considered unhealthy for everyone. To be protected by a mask that filters out the dangerous particles from ...

Adding a third layer to cloth face masks is now recommended for preventing the spread of COVID-19. Non-woven polypropylene fabric is the material of choice for this third layer, but many people may ...

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 ...

Scientists at the Institute of Theoretical and Experimental Biophysics of Russian Academy of Sciences have recently published a technique that they have used and managed to create a new material. This ...