Here's the right way to wear that face mask

A University of Alberta researcher is warning surgical masks and respirators could help spread viruses if not used properly. Hyo-Jick Choi, a biomedical engineer and assistant professor in the chemical and materials engineering department, said masks are a form of personal protection from illnesses, but that they have limitations. "They're function is to simply filter the pathogens in the air," Choi explained. "The issue is they do not die right away. So the pathogens, for example, like viruses,