Vaping refers to the act of inhaling and exhaling aerosol, often called vapor, produced by an electronic cigarette or similar device. These devices heat a liquid that usually contains nicotine, flavorings, and Do Vapes Go Off in Metal Detectors? What You Need to Know Can A Vape Trigger Smoke Alarm Will Vaping Trigger a Smoke Detector? (And How to Avoid It) ZOFO Mouth to Lung Hits Vs Straight to Lung Hits: What is the Difference? More schools installing vape detectors, with money from Juul settlement : NPR