N95 masks are distinctly and absolutely worn to protect the wearer. N95 masks are recommended for front-line staff when dealing with viral outbreaks. H1N1, SARS, MERS, and now COVID-19 -- staff wear self-protection masks. During flu outbreaks front-line staff wear N95 for clinics.
This discussion -- what we are talking about -- is COVID-19. Every front-line staff dealing with this, worldwide, is equipped with an N95 mask, or there is a problem. Because when your front-line staff get sick things really break down.