Does Vape Smoke Set Off Fire Alarms Do Vapes Set Off Smoke Alarms? Will Vaping Set Off Hotel Smoke Alarms? Vaping on Campus: No Parents, No Principals, a Big Problem The New York Times Think vapes are harmless to your smoke alarms? Not always. Vapor clouds from ecigarettes can drift into smoke alarms and trigger false alarms, especially in smaller rooms. Even lighter vapes can Does a Metal Detector Detect Disposable Vapes? [What Security Won't Tell About These 3 Detectors] Exhale Wellness