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.
Browsing: Covid
Apparel retailers including H&M and Levi Strauss are at risk of facing heightened supply chain disruptions, as a new wave of Covid cases, has prompted the government of Bangladesh to start a week-long lockdown.
Masks are important tools in the tool kit to protect people, importantly for those who are unvaccinated and who are immunocompromised, says Dr Seshadri Ramkumar, Professor, Texas Tech University.
Masks are important tools in the tool kit to protect people, importantly for those who are unvaccinated and who are immunocompromised, says Dr Seshadri Ramkumar, Professor, Texas Tech University.
Masks are important tools in the tool kit to protect people, importantly for those who are unvaccinated and who are immunocompromised, says Dr Seshadri Ramkumar, Professor, Texas Tech University.
Apparel retailers including H&M and Levi Strauss are at risk of facing heightened supply chain disruptions, as a new wave of Covid cases, has prompted the government of Bangladesh to start a week-long lockdown.
Apparel retailers including H&M and Levi Strauss are at risk of facing heightened supply chain disruptions, as a new wave of Covid cases, has prompted the government of Bangladesh to start a week-long lockdown.