1. The Washington Post: https://www.washingtonpost.com/lifestyle/wellness/masks-diy-coronavirus/2020/04/01/20830f5e-7420-11ea-85cb-8670579b863d_story.htmlWhich DIY mask pattern should you use? The Washington Post:
2. New York Times: NYT Health. (March 27, 2020). More Americans Should Probably Wear Masks for Protection, New York Times: https://www.nytimes.com/2020/03/27/health/us-coronavirus-face-masks.html.
3. MedRxiv: , Assessment of Fabric Masks as Alternatives to Standard Surgical Masks in Terms of Particle Filtration Efficiency.