Study rates duckbill N95 as best COVID mask

Study Confirms One Type of COVID Mask Is 'Significantly Better' Than Others They're not all the same. David Nield ScienceAlert

Of the four types of masks tested, the duckbill N95 mask came out on top: it blocked 99 percent of large particles and 98 percent of small particles from getting out into the air. Overall, 98 percent of the viral load was blocked by the N95.

"The research shows that any mask is much better than no mask, and an N95 is significantly better than the other options," says Donald Milton, an environmental health scientist and clinician at the University of Maryland.