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. Vape Detector vs. Smoke Detector: Comparison & How They Work Vape detectors installed in schools with sensors in private areas to catch students smoking they have hefty price tag Vape Detector vs. Smoke Detector: Comparison & How They Work