Cartridge for vaporizer device

A vaporizer cartridge for coupling to a vaporizer body to form a vaporizer, comprising:

• a reservoir housing defining a first part of a reservoir chamber, the reservoir chamber configured to contain a vaporizable material, the reservoir housing comprising a reservoir wall;
• a mouthpiece comprising a mouthpiece wall, the mouthpiece wall coupled to the reservoir wall of the reservoir housing such that an inner reservoir surface of the reservoir wall is continuous and co-planar with an inner mouthpiece surface of the mouthpiece wall, wherein the mouthpiece wall defines a second part of a reservoir chamber for containing a vaporizable material;
• and
• an air tube assembly comprising:
• a wick housing portion configured to position a wicking element and a heating element in a vaporization chamber for vaporizing the vaporizable material in the vaporization chamber;
• a tubing portion comprising a part of an airflow pathway that extends through the vaporization chamber and the mouthpiece thereby allowing vaporized vaporizable material to be inhaled by a user;
• and
• a filter housing portion configured to position a filter adjacent the mouthpiece.