Will Vaping Set Off Fire Alarms? 2026 Safety Guide E Cigarette Direct Vape Detector (& Weed, Smoke) False positives in vape detectors are a common concern, particularly when the devices are placed in environments with factors that can mimic vaping aerosols., , Common causes include:, Aerosols Detect Vape, Smoke and other Pollutants Piera Systems (REAL TEST) Can Smoke Detectors Detect Vape? (compared with a Vape Detector)