Homemade Masks Do a Great Job Blocking COVID-19
By Steven Reinberg HealthDay Reporter TUESDAY, Sept. 22, 2020 (HealthDay News) — Don’t fret about whether that fabric mask you made on your sewing machine protects against the spread of COVID-19 as well as the face masks sold in stores, new research reassures. Taher Saif, a professor of mechanical science and engineering at … Read more