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 Can you test for thirdhand smoke? Thirdhand Smoke Resource Center A pair of hackers found that a vape detector often found in high school bathrooms contained microphonesand security weaknesses that could allow someone to turn it into a secret listening device. Hotel Vape and Smoke Detector Halo Smart Sensor Vape Detector vs. Smoke Detector: Comparison & How They Work