HALO Smart Sensors Detect and Reduce Vaping in Schools, Hotels, Offices, and Healthcare Environments Surveillance Secure Do Hotels Know If You Vape? What Happens If They Find Out? UponArriving Hotels Increasingly Using Sensors to Detect Smoking Fees Can You Vape in Hotels? Rules & Tips 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