Abstract: An atomizer may comprise a main body, a mouthpiece, and an electrode member. The main body is generally elongated and cylindrical and has an interior space, a first end, and a second end. The mouthpiece coupled with the main body seals the first end, and the interior space is configured to fill with at least one kind of electronic cigarette liquid which is atomized through heat. The electrode member having an electrode is adapted to couple with the second end of the main body to form an enclosed space therebetween. Additionally, the electrode member is interchangeable and each electrode member has a predetermined shape, so an airflow movement of the vapor can be changed according to the shape of the electrode, thus providing a preferable taste of vaping for a user.