A Prefilled, in Dutch pre-filled, E-cigarette is very easy to use and is maintenance free. How does it work? A Prefilled E-cigarette uses pods (attachments), which are pre-filled with e-liquid. As soon as the pod is vaporized empty you can simply insert a new pod . Compared to the disposable e-cigarette, the Prefilled sets can be recharged but, as with the disposable models, unlike the regular e-cigarette, you do not have to replace the coils and fill it yourself with e-liquid . So very user-friendly and simple to use. More plus points? They are small in size, mimic the effect of a cigarette and the pods are available with different nicotine strengths/flavors!