Browsing: Centers for Disease Control and Prevention

Professor researches effectiveness of face masks against particles similar in size to
coronavirus. Seshadri Ramkumar’s data shows three-ply face masks can filter out 60-80% of
simulated viral particles between 150 and 30 nanometers in diameter, respectively.

Professor researches effectiveness of face masks against particles similar in size to
coronavirus. Seshadri Ramkumar’s data shows three-ply face masks can filter out 60-80% of
simulated viral particles between 150 and 30 nanometers in diameter, respectively.