RESEALABLE CARTRIDGE ASSEMBLY FOR AN AEROSOL-GENERATING SYSTEM

A cartridge assembly (2, 200) for use in an aerosol-generating system comprises: a cartridge (4) having an upstream end and a downstream end, the cartridge (4) comprising: at least one compartment (12, 14) having an air inlet at the upstream end of the cartridge (4) and an air outlet downstream of the air inlet; a removable first seal (20) secured to the upstream end of the cartridge (4), wherein the removable first seal (20) obstructs the air inlet of the at least one compartment (12, 14) and is configured to be removed by a user prior to use of the cartridge assembly (2); and a cartridge actuation portion (18) on an inner surface of a downstream end portion of the cartridge (4). The cartridge assembly (2) also comprises: a mouthpiece comprising: a mouthpiece body portion (22) having an upstream end and a downstream end, the mouthpiece body portion (22) having an air inlet at the upstream end of the mouthpiece body portion (22) and an air outlet at the downstream end of the mouthpiece body portion (22); a second seal (26) at the upstream end of the mouthpiece body portion (22); and a mouthpiece actuation portion (28) on an outer surface of the mouthpiece body portion (22). The mouthpiece actuation portion (28) is engaged with the cartridge actuation portion (18) and the mouthpiece actuation portion (28) and the cartridge actuation portion (18) are configured so that the mouthpiece body portion (22) is moveable with respect to the cartridge (4) from a first position, in which first position the second seal (26) abuts and obstructs the air outlet of the at least one compartment (12, 14), to a second position, in which second position the second seal (26) is spaced apart from the air outlet of the at least one compartment (12, 14) and the air outlet of the at least one compartment (12, 14) is in fluid communication with the air inlet of the mouthpiece body portion (22).