Do Vapes Set Off Smoke Alarms? What You Should Know Do E Cigarettes Set Off Fire Alarms? NZVAPOR NZ Can a Vape Set Off a Fire Alarm? What You Should Know Can Vape Pens Trigger Smoke Alarms in Buildings or Planes? What Do Vape Detectors Look Like? A Complete Overview 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