A new N95 prototype mask made by NTU Singapore scientists that blocks 99.9% of germs and particulate matter (IMAGE)
Caption
The N95 prototype mask made with dielectric fabric, with bottles of antimicrobial copper nanoparticles of various colors in the background. It can trap and kill 99.9% of germs as well as block 99.9% of particulate matter down to 0.3 microns.
Credit
NTU Singapore
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