
Face Mask Filter viewed with Scanning Electron Microscopy, in planar view and in cross-sectional views. Jaap Nijsse. www.consistence.nl
Face mask cross section
In an earlier post we visualised a planar view of a face mask filter at increasing magnification, showing a heterogeneous network of fibres. It is not trivial to obtain high resolution cross sections through fabric: sub-micron (less than 1/1000 millimetre) details cannot be obtained with light microscopy or x-ray imaging, while sections of embedded material lack the third dimension. Embedding…