The Vapouron CE4 Electronic Cigarette it compact and has a light weight design. The top filled coil atomizer can retain up to 1.6ml of E Liquid, and can be easily replaced with an array of different VapourOn Atomisers. You will very quickly know when the coil requires changing, as the E-Liquids taste will begin to change, and the device stops producing as much vapour. The Vapouron CE4 Electronic Cigarette mets the TPD regulations set by the government, which means that it has been tested to ensure optimum safety when vaping.