Face masks are increasingly mandated in U.S. cities and states. The biology department at the University of Arkansas Little Rock put four kinds of masks to the test: the N-95 mask, disposable mask, cloth mask and neck gaiter.
Fuente: Youtube
Face masks are increasingly mandated in U.S. cities and states. The biology department at the University of Arkansas Little Rock put four kinds of masks to the test: the N-95 mask, disposable mask, cloth mask and neck gaiter.
Fuente: Youtube
