I tested how well the masks blocked out light by wearing them during the day, at night with a low light on, and in complete darkness. I also took note of how soft and breathable the different ...

Early in the pandemic, mask-wearing policies were consistently associated with decreased transmission of SARS-CoV-2. At that time, the masks worn were generally made of cloth and often improvised. The ...

Torii Station, Japan – The U.S. Army Garrison Okinawa Safety Office conducted annual fit mask testing for Logistics Readiness Center (LRC) personnel this month to ensure compliance with Army safety ...

Share on Pinterest New research examines the protection offered by fit-tested N95 masks against airborne particles. John Tlumacki/The Boston Globe via Getty Images Healthcare workers rely on N95 ...