Video: How Big is a Virus?
How small is a single coronavirus, really?
Editor's Note: After viewing this video, I doubt you will be able to honestly say you think a mask is going to stop viruses from getting through or around a mask. Pretty clear there's no way to prevent what you exhale from getting into the air around you.
This video from an Exploratorium exhibit designed to help you visualize how small a coronavirus really is and investigate the implications of its small size.
