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 Amazon.com: This bathroom is being monitored with a vape sensor and noise detection system SIGN (black, ALUMINIUM MATERIAL,7X10 INCH,RUST FREE) : Industrial & Scientific Your guests aren't the only ones checking in. So are their vape pens. With over 13 million regular vapers in the U.S. alone, unauthorized vaping is a major operational risk for hotels. Do Hotels Know If You Vape? What Happens If They Find Out? UponArriving