The SQuape X - (X's & X Dream) are rebuildable tank atomizers that were developed and produced in Switzerland, manufactured by StattQualm GmbH.  The SQuape (X's & X Dream) can be closed off completely by a slight rotation of the tank and is therefore absolutely leak-free. Because of the closed system the tank can be taken off the atomizer and transported empty or full. Short circuits are virtually impossible, through clever design of current conduction, as well as due to the nonconductive surface of the whole atomizer-chamber (consisting of emetalised aluminum).