HALO Smart Sensors Detect and Reduce Vaping in Schools, Hotels, Offices, and Healthcare Environments Surveillance Secure 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 Vaping and Smoke Alarms: What Actually Triggers the Sensors Vapesdirect Vape Detector (& Weed, Smoke) Do Vapes Set Off Smoke Alarms?