You see a lot of people wearing home made face masks in grocery stores and even while driving their cars.
Dr. Lisa Brosseau of the University of Illinois in Chicago, studies the effectiveness of masks. She says surgical masks were not designed to prevent transfer of particulates.
Dr. Brosseau recommends health workers were ventilators. She says some surgical masks like the N-95 are reasonably effective in reducing the transfer of a virus. But she says many of the home made masks are only 10% effective at the most.
She says she doesn’t understand why the centers for disease control reversed itself on the wearing of masks to reduce the transfer of corona-virus.