Place a vape detector near vents

https://www.kron4.com/business/press-releases/globenewswire/9676076/zeptive-software-update-boosts-vape-detection-performance-and-adds-new-features-free-update-for-all-customers-with-zeptives-custom-communications-module

Location a vape detector near vents and mirrors to catch aerosol plumes that may otherwise disperse rapidly in hectic toilets or passages.