I was reading a post from about a year ago. About the legitimacy of hotels having silent vape alarms. Well I just found one in my hotel. Discreetly attached to the back New devices in high school bathrooms can detect smoke, vapor and 'aggressive behavior' mlive.com Vape Detector by Forensics for Schools, Home, Hotels, Business Cell Phone Alarms WiFi Laser Scattering Super Sensitive Sensor Amazon.com Can a carbon monoxide detector detect vape smoke? ANKA