Found out what an airplane smoke detector sounds like : r unitedairlines Flight attendants reveal whether they know you're breaking this plane rule When traveling with your vape or e cig on a plane, do it safely: vapes should be turned off and carried on, never checked. Do not use or charge it on the aircraft. Everyone Is Vaping on the Plane Can The Smoke Detector Detect Vape Can Metal Detectors Detect Vapes? Do Vapes Set Off Smoke Alarms? Aeroplane & Hotel Smoke Detection VPZ