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.
... In a survey conducted among more than 2,200 adults at the end of May, 53% of respondents said they believe that the effects of global warming impacts Americans' mental health.
Recent Comments