Can The Smoke Detector Detect Vape Will Vaping Set Off Hotel Smoke Alarms? Can You Vape in a Hotel Room? Crystal Vape & Crystal Bar & SKE Vape Official Station Can Hotels Tell If You Vape? LOOKAH 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. 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 Vape Detector vs. Smoke Detector: Comparison & How They Work