Will Vaping Set Off Fire Alarms? 2026 Safety Guide E Cigarette Direct Can Vapour Set Off Smoke Detectors? V2 Cigs UK Vape Detector vs Smoke Detector: What's the Difference? (REAL TEST) Can Smoke Detectors Detect Vape? (compared with a Vape Detector) Can Airplane Smoke Detectors Detect Vape (in 2024) ? Vape Detector Smoking or vaping is not allowed on any flight to or from the United States. You can carry an e cig in your hand luggage, but you cannot use it in the cabin.