Smoke alarms & e cigarettes in hotel rooms Fire alarm? Can Vaping Set Off a Smoke Alarm? Here's What You Need to Know Flight attendant explains what really happens if you smoke or vape on a plane 7NEWS March 26th, 2026: A passenger on Alaska Airlines flight ASA1436 from Seattle to Sacramento set off a smoke alarm at 35,000 feet after using a vape inside the lavatory, prompting the pilots to request (REAL TEST) Can Smoke Detectors Detect Vape? (compared with a Vape Detector)