FILE - A medical worker holds up an N95 mask in the ER at Oakbend Medical Center in Richmond, Texas, on July 15, 2020. LOS ANGELES - While health officials and government leaders are advocating and even requiring individuals to wear masks in public amid the pandemic, a new article suggests that some masks, particularly a fitted N95 mask, may be more effective in helping prevent the spread of COVID-19 than others.Published on Aug.