Herek Clack, Founder of Taza Aya, and Associate Professor of Civil & Environmental Engineering, University of Michigan wrote an article for The Conversation.
The big idea: It’s the enduring media image of infectious disease outbreaks, including the current coronavirus outbreak from Wuhan, China: people in public spaces with faces half-hidden by surgical masks.
Filters have long been used to remove particles, including viruses and bacteria, from the air we breathe. Particle filters are key components of building and aircraft ventilation systems. Unfortunately, viruses are much smaller than the smallest particles those filters typically capture reliably.