You may notice a sweet or minty smell that fades fast, a cloud, or repeated trips to a quiet room. Small devices, pods, chargers, or oily marks can add context. A person may also cough, drink more water, open windows, use air freshener, or keep a device close.
None of these signs proves that someone is vaping. Scents can come from food, perfume, or cleaning products. Coughing and thirst have many causes. Avoid searching personal items, making claims, or treating one clue as certain proof.
In a shared building, note patterns instead. Record where and when staff find an odor or haze. Check whether complaints cluster around a restroom, guest floor, break room, or shift. A vape detector can add an air-quality signal in places where cameras do not belong, though its alert also needs a check.
If you manage a school, hotel, workplace, or other site, publish a clear no-vaping rule and explain how staff respond. Speak with the person in private when facts support a conversation. Ask a direct, calm question and allow an answer. Our guide to detecting vapes in shared spaces covers sensor placement, privacy, false alerts, and response plans that help teams act on facts.