Can hotels detect vaping in rooms? How Hotels Detect Smoking: From Traditional Methods to Detection Technology Hotel Vape Detectors: Complete Guide to Combating Vaping 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