261 Got this from the Chan. Cotton swab vs Covid swab under microscope. Cotton = leaves no marks or trace when brushed across meat. Covid = leaves multiple fibers and have weird "black/gray" fibers that reacts to heat. (files.catbox.moe) ?️ DISCUSSION ? posted 3 years ago by Deaf_MAGA_Pede 3 years ago by Deaf_MAGA_Pede +261 / -0 Your browser does not support videos. 108 comments share 108 comments share save hide report block hide replies
It’s called a Flocked Swab. I just looked up the difference between it and a “normal” cotton one and the results are bizarre. Just throw that term into a search engine and find what you can.
Here's one company that manufactures flocked swab and tries to explain the difference
https://www.copanusa.com/sample-collection-transport-processing/floqswabs/