"When you're inhaling dust, it can include pollen, and it can include dirt and other stuff," said Chelsea Langer, acting ...

Dust masks had the lowest rate ... “This experiment reconfirmed that wearing cloth and gauze masks can’t prevent virus infection,” Onishi said. However, he conceded that such masks do ...

Los Angeles, a city renowned for its sprawling urban landscape and vibrant culture, has once again found itself grappling ...