Does Vape Trigger Smoke Alarm Will Vaping Trigger a Smoke Detector? (And How to Avoid It) 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 Cigarette Smoke Detector Vape Detector by Forensics for Schools, Home, Hotels, Business Cell Phone Alarms WiFi Laser Scattering Super Sensitive Sensor Amazon.com