Most parents look for the wrong things. You will not smell cigarettes, you will not find ash, and you will probably not find a lighter. Modern nicotine vapes are engineered to be small, smell sweet, and disappear.

The devices

  • Disposables (Elf Bar, Lost Mary, Breeze, Funky Republic) — the most common now. Shaped like a highlighter or car key, brightly coloured, no charging port. Lasts 1-3 weeks per unit.
  • Pod systems (Juul, Vuse Alto, NJOY) — look like USB flash drives, with a small replaceable pod at the top.
  • Refillable pens (SMOK, Uwell) — larger, look more like a chunky pen or small flashlight.
  • Stealth devices — vapes built into hoodie drawstrings, smart-watch bands, phone cases, or pens. If you see a "pen" with a mouthpiece and no visible tip, it is a vape.

The smells

E-liquid is heavily flavoured to be palatable at high nicotine strengths. Common smells: mango, watermelon, blue raspberry, cotton candy, vanilla custard, mint, menthol. The smell is sweet, non-smoky, and clears from a room in under a minute — very different from cigarette smoke, which lingers in fabric for days.

The behaviours

Nicotine dependence is fast in adolescents. Once a teen is using a disposable daily, you may see:

  • Predictable irritability that peaks in the last hour of the school day, then vanishes after they get home and disappear to their room.
  • Frequent bathroom trips at school (documented in every US surveillance survey).
  • Dry cough, throat clearing, or nosebleeds — from propylene glycol drying the airways.
  • "Vape tongue" — loss of taste, especially for sweet foods.
  • Increased thirst and unexplained new water-bottle habits.
  • Sleep changes — trouble falling asleep, then oversleeping.

None of these is proof on its own. The pattern is what matters.

Physical evidence

  • USB-C or micro-USB chargers you did not buy.
  • Small "pod" cartridges — clear plastic with liquid inside — in the laundry or a backpack.
  • Empty foil pouches labelled 5% or 50 mg/mL.
  • Bright plastic cases the size of a lip balm.

What to do with what you find

Finding a device is not the moment to search their room or take their phone. It is the moment to plan a calm conversation. See our guide to talking to your teen about vaping — the evidence is very clear that ultimatums drive teen vaping underground rather than reducing it. What actually helps: connection, the Truth Initiative parent text programme, and a paediatrician appointment.