Cover smart. Do your part. Slow the spread.

The high-speed visualizations illustrating airflow when breathing and coughing using home-made masks. Behind the scenes blog: https://www.nist.gov/blogs/taking-measure/my-stay-home-lab-shows-how-face-coverings-can-block-spread-disease. Text version of video: https://www.nist.gov/director/pao/cover-smart-do-your-part-slow-spread-video-transcript-including-description-visuals