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- Electric fields
- Brownian motion
- Polarized polymers
- Face velocity and particle mass
- Sub-micron melt-blown fibers
The science behind how an N95 mask can filter out virus-sized particles while allowing nitrogen, oxygen, and argon molecules (air) to easily flow through the respirator’s fabric.
This is an advanced webinar (even though they call it basic) by the company that makes the equipment that NIOSH uses to test N95 masks...
@Pat i used to have some paper where they were stuffing their masks with silk because the electrostatic charge actually did repel microbes.
The charged fabric in masks attracts particles and makes them stick, like socks stick your blouse when you pull them out of the clothes dryer.
Even neutrally charged particles will stick because they become polarized by the static electric field of the fabric.
