3 ms·

I'm ill informed, do you have a source? Is it cotton or polymer?

• RegnisGnaw 6y ago
  Here's the document on the 3M N95 8210 which is a common N95 mask: https://multimedia.3m.com/mws/media/1425070O/3m-particulate-respirator-8210-n95-technical-specifications.pdf https://multimedia.3m.com/mws/media/1425070O/3m-particulate-... • Straps – Thermoplastic Elastomer • Nose Clip – Aluminum • Nose foam - Polyurethane • Filter – Polypropylene • Shell – Polyester • Coverweb - Polyester Here's the datasheet for the 3M 1860 N95 Surgical Respirator (for hospital and medical use): https://multimedia.3m.com/mws/media/1538979O/3m-disposable-respirator-1860-1860s-technical-data-sheet.pdf https://multimedia.3m.com/mws/media/1538979O/3m-disposable-r... * Straps: Braided Polyisoprene * Staples: Steel * Nose Clip: Aluminium * Nose Foam: Polyurethane Foam * Filter: Polypropylene/Polyester * Shell: Polypropylene * Coverweb: Polypropylene Here's another document from Honeywell stating the main material is "flexible non-woven polypropylene fabric" https://www.honeywell.com/en-us/newsroom/news/2020/03/n95-masks-explained https://www.honeywell.com/en-us/newsroom/news/2020/03/n95-ma... Here's the link to Wikipedia and I quote "The N95 mask requires a fine mesh of synthetic polymer fibers, also known as nonwoven polypropylene fabric,[5] which is produced through a highly specialized process called melt blowing that forms the inner filtration layer that filters out hazardous particles.[6]" https://en.wikipedia.org/wiki/N95_mask https://en.wikipedia.org/wiki/N95_mask