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. 2in1 Cigarette Detector with Remote Control, No Smoking and PM2.5 Alarm with Voice Reminder, Tobacco Control Guard Environmental Monitor for Office Public Spaces Smart Air Quality Surveillance System Walmart.com Vape Detectors Now Being Installed In Minnesota Hotels Can they tell if you vape in a hotel room? Knowledge Kaiweili Digital Technology