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 False positives in vape detectors are a common concern, particularly when the devices are placed in environments with factors that can mimic vaping aerosols., , Common causes include:, Aerosols 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. Can Vaping Devices Set Off Smoke Alarms?