How and Why to Double-Mask

2:00

Wearing two masks can block 92.5 percent of particles. Scientist Linsey Marr shows you how to properly double-mask. For more information, go to aarp.org/coronavirus.

All Featured Videos
How and Why to Double-Mask

Wearing two masks can block 92.5 percent of particles. Scientist Linsey Marr shows you how to properly double-mask. For more information, go to aarp.org/coronavirus.