![](https://www.nist.gov/sites/default/files/images/2024/08/15/BreathStudyIllustration.png)
NIST Researchers to Test New Approach for Detecting Cannabis in Breath
An illustration showing a researcher analyzing breath samples in the lab. Credit: NIST With cannabis now outpacing alcohol as Americans’ daily drug of choice, there is a critical need for a scientifically validated breath test to detect the recent use of …