Pretty neat fact, looks like a UT guy designed the essential technology that N95 masks effective...
https://tickle.utk.edu/the-man-behind-the-mask/
"In producing the masks, whose filters help block and contain a minimum of 95 percent of all particles, Tsai used a method called corona electrostatic charging."
https://tickle.utk.edu/the-man-behind-the-mask/
"In producing the masks, whose filters help block and contain a minimum of 95 percent of all particles, Tsai used a method called corona electrostatic charging."
