Can You Vape In Hotels Do Smoke Detectors Detect Vape? A Guide About Smoke Detectors Are Set Off By Vapes Smoke Pencil Air Leak Detection Will Vaping Set Off Hotel Smoke Alarms? Can Vaping Really Set Off Smoke Alarms? The Truth Revealed A pair of hackers found that a vape detector often found in high school bathrooms contained microphonesand security weaknesses that could allow someone to turn it into a secret listening device.