This year’s back-to-school supply list has an important line item: masks. With a rise in the delta variant, school mask mandates and recommendations from major medical groups that all children age 2 ...

Breathing through effective masks is difficult. There's a pressure drop associated with the filtration (which is what forces the air around the seams which is why proper use of an N95 mask should ...

With the highly contagious delta variant continuing to fuel a spike in coronavirus cases, there’s a renewed focus on masks. It’s not just about wearing one, but wearing one that offers the most ...

This year’s back-to-school supply list has an important line item: masks. With a rise in the delta variant, school mask mandates and recommendations from major medical groups that all children 2 and ...