cartridge for use in a steam supply system, the cartridge containing an inner container containing a reservoir for a fluid to be vaporized and an outer casing with a mouthpiece trained therein, where the outer casing extends longitudinally along the outside of the inner container over at least a substantial part of the inner container and where the inner container and the outer casing are equipped with a locking mechanism to keep the inner container inside the outer casing.
展开▼