How to tell if a child is vaping: check for small pods, pen-like devices

https://smb.orangeleader.com/article/Zeptives-Industry-Leading-Vape-Detectors-Get-Major-Software-Upgrade-for-Easier-Management?storyId=68a5129a2ccae40002d54ce5

How to tell if a child is vaping: check for small pods, pen-like devices, or residue in pockets; note frequent air freshener use.