“Even as much as singing and talking apparently have the capability of generating small particles that can be used as carriers for this virus,” says James Smith, UCI professor of chemistry, an aerosol expert who studies how things like dust and water droplets behave in the air. …. a team of UCI researchers led by Smith assembled to figure out how to make masks that are safe to use and that anyone can craft at home.
Finding effective face mask fabric for DIY protective coverings – “bandanas useless”
SciTechDaily, April 20, 2020
April 20, 2020