“But when wearing an N95 mask, the risk goes down exponentially.” In fact, the duckbill N95 blocked 99 percent of large particles and 98 of small particles from escaping, making it the clear ...

In a head-to-head comparison of masks worn by people with active COVID-19, the inexpensive "duckbill" N95 came out on top, stopping 98% of COVID-19 particles in the breath of infected people from ...