Scientists who tested a variety of cloth face masks found that a nylon overlay significantly boosted how well they work. Researchers not involved in the study praised the finding.

Scientists who tested a variety of cloth face masks found that a nylon overlay significantly boosted how well they work. Researchers not involved in the study praised the finding.

When choosing a thread color, it’s best to match the color of the thread to the color of the fabric. ... The strongest type of thread for sewing machine is nylon thread.

A single-layer mask made from a 400-thread-count pillowcase had a filtration efficiency of around 10%, but if you bumped it up to four layers of cloth, the efficiency went up to around 20%.

Segal had similar results for ripstop nylon to Smart Air's 40D nylon: It's good at filtration but not very breathable. "It was more like a face shield than a mask," he told TODAY.

Here's what you'll need to make one nylon-net scrubber: • 1/2 yard of 72-inch-wide nylon net (found at fabric shops) •scissors •strong nylon thread or dental floss •large needle Cut the ...