Researchers at Northeastern University have found that adding an outer layer made from nylon stockings to a homemade face covering can boost its ability to filter out small particles in the air by creating a tighter seal between the mask and the wearer's face. In some cases, that extra nylon layer helped homemade cloth masks match or exceed the filtering capability of medical-grade surgical masks.
That’s it for me, though. I’m fine with steaming up my cheaters when I pop them on to read the labels in the grocery store. I can deal with my mask constantly creeping up to my eyes as my bangs flop down from the other direction. But I draw the line at wrapping café au lait toned nylon over my face in public. I’d rather add another 6 feet to my social distancing and extend my time inside, developing the same pasty skin tone as a lifer at San Quentin.