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. Does anyone know if Vape smoke will set off this hotel fire alarm? : r Vaping Do hotels have THC detectors? ANKA Vape Detector vs. Smoke Detector: Comparison & How They Work Do Vapes Set Off Hotel Smoke Alarms Can hotels detect vaping in rooms? VapeDetector.com (for Schools, Home, Work)