Can Hotel Smoke Detectors Detect Vape Can Hotels Detect Vaping in Rooms? Do Vapes Set Off Smoke Alarms? What You Should Know Best Way To Smoke In A Hotel Room Discreetly HEMPER What is Smoking Detection Technology? What Do Vape Detectors Look Like? A Complete Overview 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.