The pandemic has led to N95 masks quickly becoming one of the world’s most sought-after resources as essential workers burned through billions of them. New research could lead to an N95 that you can recharge rather than throw away — or even one that continuously tops itself up for maximum effectiveness.
The proposed system, from researchers at Technion-IIT in Israel and the Tata Institute of Fundamental Research in India, is not one of decontamination, as you might expect. Instead, it focuses on another aspect of N95 masks that renders them less effective over time.
N95s use both mechanical filtering, in which particles are caught in a matrix of microscopic fibers, and electrostatic filtering, in which particles are attracted to surfaces that carry a static charge. It’s like the old trick where you rub a balloon on your head and it sticks — but at the scale of microns.
https://techcrunch.com/2020/09/14/n95-masks-could-soon-be-rechargeable-instead-of-disposable/HELP US SPREAD GOOD NEWS!
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