A cartridge for an e-vapor device, comprising: a housing including a reservoir portion and a connector portion, the connector portion being configured to connect the cartridge to a power supply section; and a heater assembly including a heating element disposed in the housing, the heating element including, a planar portion in fluid communication with the reservoir portion, the planar portion including a filament, the filament defining an air channel through a central portion of the planar portion, the filament arranged so as to form a plurality of u-shaped portions encircling at least a majority of the air channel, the air channel having a circular shape, tips of each of the plurality of u-shaped portions extending away from the air channel, a first one of the plurality of u-shaped portions being beside a last one of the plurality of u-shaped portions and first and second lead portions (30, 40) extending away from the planar portion, wherein the planar portion, the first lead portion, and the second lead portion are a unitary body, and the first lead portion is connected to the first one of the plurality of u-shaped portions and the second lead portion is connected to the last one of the plurality of u-shaped portions, such that the first lead portion is beside the second lead portion at a point of connection to the planar portion, the first and second lead portions (30, 40) at least partially surround the planar portion, the first lead portion includes a first tip, the second lead portion includes a second tip, and the first tip and the second tip being on opposite sides of the planar portion. a housing including a reservoir portion and a connector portion, the connector portion being configured to connect the cartridge to a power supply section; and a heater assembly including a heating element disposed in the housing, the heating element including, a planar portion in fluid communication with the reservoir portion, the planar portion including a filament, the filament defining an air channel through a central portion of the planar portion, the filament arranged so as to form a plurality of u-shaped portions encircling at least a majority of the air channel, the air channel having a circular shape, tips of each of the plurality of u-shaped portions extending away from the air channel, a first one of the plurality of u-shaped portions being beside a last one of the plurality of u-shaped portions and first and second lead portions (30, 40) extending away from the planar portion, wherein the planar portion, the first lead portion, and the second lead portion are a unitary body, and the first lead portion is connected to the first one of the plurality of u-shaped portions and the second lead portion is connected to the last one of the plurality of u-shaped portions, such that the first lead portion is beside the second lead portion at a point of connection to the planar portion, the first and second lead portions (30, 40) at least partially surround the planar portion, the first lead portion includes a first tip, the second lead portion includes a second tip, and the first tip and the second tip being on opposite sides of the planar portion. a planar portion in fluid communication with the reservoir portion, the planar portion including a filament, the filament defining an air channel through a central portion of the planar portion, the filament arranged so as to form a plurality of u-shaped portions encircling at least a majority of the air channel, the air channel having a circular shape, tips of each of the plurality of u-shaped portions extending away from the air channel, a first one of the plurality of u-shaped portions being beside a last one of the plurality of u-shaped portions and first and second lead portions (30, 40) extending away from the planar portion, wherein the planar portion, the first lead portion, and the second lead portion are a unitary body, and the first lead portion is connected to the first one of the plurality of u-shaped portions and the second lead portion is connected to the last one of the plurality of u-shaped portions, such that the first lead portion is beside the second lead portion at a point of connection to the planar portion, the first and second lead portions (30, 40) at least partially surround the planar portion, the first lead portion includes a first tip, the second lead portion includes a second tip, and the first tip and the second tip being on opposite sides of the planar portion.