Breathing clean: The electrifying science behind N95 respirators
Prior to the eruption of Taal Volcano or the standstill brought about by the COVID-19 pandemic, most Filipinos had probably never heard of N95 respirators. Even now, six months and counting under one form of community quarantine or another, there persists the idea that N95 respirators act like a net or a colander—that they easily […]