NFL testing N95, surgical mask material on modified face masks in hopes of fighting COVID-19 spread
NFL tests coronavirus-limiting masks with N95, surgical material
NFL testing new protective face masks with surgical or N95 material - ESPN
Michigan nurses: We don't have masks to treat coronavirus patients
Marketplace tested over 20 different masks. Here's what will best protect you and others during the pandemic
Medical workers take drastic steps to protect their families from coronavirus as outbreak grows – Hartford Courant
Browns center J.C. Tretter, the new NFLPA president, assessing 'long list of hurdles' for players - ESPN
Explainer: N95? KF94? Which mask is best at protecting against COVID-19
Air Force update for COVID-19 > 445th Airlift Wing > Article Display
MIT researchers created a reusable face mask that works like an N95 respirator
Hospitals still ration medical N95 masks as stockpiles swell
Coronavirus outbreak: Live updates on COVID-19