fibers

Nanofibers are have diameters that are less than 1000 nm nanometers wide. They’re found in athletic clothes and shoes, as well as rainwear, since they "wick" away sweat and water. They’re also found in napkins, cosmetics, and baby diapers, as well as air filters, which is an especial problem since inhaling these nanofibers can cause the lung disease mesothelioma, the same disease that is caused by inhaling asbestos fibers. In fact, nanofibers may become "the new asbestos."
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