Diagram of mask fibres and how they catch particles.

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   Dan Neuman (dan613@ottawa.place)'s status on Friday, 17-May-2024 00:05:15 JST Dan Neuman

   How do N95 masks catch particles that are smaller than the holes?

   1. Particles are sticky because of static forces
   2. Large particles go straight until they hit a mask layer
   Tiny particles get knocked around by molecules until they hit a fibre
   3. Fibres are given an electric charge so that they attract all particles (the mid-sized particles carrying the SAR2 virus need this)

   #MaskUp

   http://youtu.be/eAdanPfQdCA