Can Vape Trigger Smoke Alarm Does Steam Set Off Smoke Alarms? All You Need To Know Australia Do Vapes Does Vape Trigger Smoke Alarm Do Vapes Trigger Smoke Alarms? Facts and Tips Will a Vape Set Off a Fire Alarm? What to Know Vape Detectors and Sensors: Everything You Need to Know How to Vape Without Setting Off the Smoke Alarm JAC Vapour 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