MATERIAL WORLD: The best and worst of DIY coronavirus masks

Publish Date
Wednesday, 29 April 2020, 11:59AM

 

Materials like coffee filters perform exceptionally well at filtering tiny particles, but they are so difficult to breathe through they aren’t practical for making face masks. Based on a combination of breathability and filtration effectiveness, the best materials for homemade masks are:

  • Denim (10oz)
  • Bed sheets (80-120 thread)
  • Paper towel
  • Canvas (0.4-0.5mm thick)
  • Shop towel

 

 

*** Researchers say that scarves rank among the poorest at capturing virus-sized particles ***