Studying fabrics at very high magnification helps determine how some face masks filter out particles better than others. And the close-ups reveal an unseen beauty of the mundane objects that have now ...

Recycled polyester has been promoted as fashion’s environmental redemption arc. Turning plastic bottles into clothing promised a cleaner future: less waste, lower emissions, and a more “circular” ...

N95: In an N95 mask (seen in false color cross section), a thin outer layer (top) and a thick inner layer (bottom) sandwich a filtration layer (purple), which traps the smallest particles. The ...