Humidity in breath makes cotton masks more effective -- MEDICA - World Forum for Medicine

Humidity in breath makes cotton masks more effective

15.03.2021

Image: Black-and-white images of two kinds of tissue fibers; Copyright: E.P. Vicenzi/Smithsonian's Museum Conservation Institute and NIST

Scanning electron microscope images of cotton flannel (left) and polyester (right). Cotton fibers absorb moisture from breath, which increases filtration. Each segment of the image scale bars is 50 micrometers, or millionths of a meter - roughly the width of a human hair.

Products and exhibitors around protective equipment

Image: Head of a mannequin with a medical face mask; Copyright: Messe Düsseldorf