Cartridge for a vaporizer device

A vaporizer cartridge 1320 comprising: a cartridge housing; a reservoir 1340 configured to contain a liquid vaporizable material, the reservoir being partially defined by at least one wall of the cartridge housing, the reservoir comprising a storage chamber 1342, and an overflow volume 1344; a collector 1313 disposed in the overflow volume, the collector comprising a secondary passageway 1384 configured to retain a volume of the liquid vaporizable material in fluid contact with the storage chamber, and a microfluidic gate disposed at one end of the secondary passageway and configured to control flow of the liquid vaporizable material between the second passageway and the storage chamber; a wicking element in fluid communication with the reservoir, the wicking element 1362 configured to draw the liquid vaporizable material from the storage chamber; and a heating element configured to heat the wicking element 1350 to convert at least some of the liquid vaporizable material drawn from the storage chamber to a gaseous state.