WARNING: This product contains nicotine. Nicotine is an addictive chemical.

Why Is My Vape Leaking? Causes, Fixes and Prevention

Most leaks are physics rather than a faulty device. Heat thins e-liquid and expands the air inside the tank; that expanding air has to go somewhere, and it pushes liquid out through the airflow holes. Orientation makes it worse. A device carried mouthpiece-down in a warm pocket is close to a worst case.

What actually causes it

  • Heat. A hot car, direct sun, or a tight trouser pocket against your leg. Warm e-liquid is thinner and flows where it should not.
  • Pressure change. Altitude is the obvious one — see our guide to flying with a disposable — but a heated car on a cold day does something similar.
  • Orientation. Stored mouthpiece-down, gravity works against the wick and liquid pools where the airflow exits.
  • Very hard draws. Pulling harder than the airflow is designed for drags liquid past the wick rather than vaporising it. This also causes gurgling.

Cleaning it up

Wipe the outside and the mouthpiece with a dry tissue, then invert the device and draw two or three times without firing to clear liquid from the airway. Wash your hands afterwards — nicotine is absorbed through skin, and a concentrated e-liquid is not something to leave on your fingers.

Keep leaked liquid away from children and pets, and wipe down anything it pooled on.

Preventing it

Store it upright with the mouthpiece up. Keep it out of hot cars and away from radiators and windowsills. Draw gently rather than hard. If you carry it in a bag, a small zip pouch contains any leak that does happen and costs nothing.

Gurgling is the same problem, earlier

A gurgling or spitting sound means liquid has already collected in the airway. Invert and draw a few times without firing to clear it before it becomes a leak.

When it is a defect

Steady leaking from a device that has been kept upright at room temperature and drawn on gently is a seal failure, not user error. A device that arrives already wet inside its packaging was faulty before it reached you, and our 7-day dead-on-arrival replacement covers it.


Products sold by VIP Sales are for adults 21 and over. Nicotine is an addictive chemical.

3rd Sep 2026 VIP Sales

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