Be Smart

How Well Do Masks Work?

Wearing a mask is a cheap and easy way to help stop the spread of airborne infections like COVID-19. It’s also a sign that you want to help protect other people and have them protect you… that we’re all in this together. Here’s some awesome slow-motion schlieren imaging experiments to demonstrate why masks work! Share with someone who needs to see this.

How Well Do Masks Work?

7m 25s

Wearing a mask is a cheap and easy way to help stop the spread of airborne infections like COVID-19. It’s also a sign that you want to help protect other people and have them protect you… that we’re all in this together. Here’s some awesome slow-motion schlieren imaging experiments to demonstrate why masks work! Share with someone who needs to see this.

Similar Shows

NOVA: show-poster2x3

NOVA

Science and Nature

Outback: show-poster2x3

Outback

Science and Nature

WETA Passport

Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.