Vape detection can set off signage or lights outside bathrooms

https://www.benzinga.com/pressreleases/26/04/g52007204/zeptive-releases-update-1-33-500-for-vape-detectors-adds-enhanced-detection-performance-loitering-

Vape detection can set off signage or lights outside restrooms, signifying short-term checks without exposing the identity of any trainee.