Do Hotels Know If You Vape? What Happens If They Find Out? UponArriving 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. Can hotels detect vaping in rooms? Does Vape Set Off Smoke Alarms Do Vapes Set Off Smoke Alarms? A Clear and Simple Smoke alarms & e cigarettes in hotel rooms Fire alarm? Do Hotels Have Vape Detectors? The Truth About Smoking Detection Technology (2026)