A cartridge assembly having a proximal end and a distal end for use in an aerosol generation system includes a first compartment 4 and a second compartment 18 having a first air inlet 10 and a first air outlet 14, And a second compartment (6) having a second air outlet (22); And a mouthpiece (30) partially surrounding the cartridge (2) and having a third air outlet. The cartridge 2 and the mouthpiece 30 are arranged such that the proximal end of the mouthpiece 30 is adjacent to the proximal end of the cartridge 2 and the contraction position of the mouthpiece 30 and the proximal end of the cartridge 2 are in the longitudinal direction Between the extended positions defining a chamber 36 in fluid communication with the first air outlet 14, the second air outlet 22 and the third air outlet 32 therebetween relative to each other in the longitudinal direction It is movable. The first and second air inlets 10 and 18 and the first and second air outlets 14 and 22 are disturbed by the dental mouthpiece 30 and the third air outlet 32 is blocked by the cartridge 2). In the extended position, along a first airflow path extending from the first air inlet 10 to the first air outlet 14 through the first compartment 4 and a second airflow path extending through the second compartment 4, May be sucked into the chamber 36 along a second airflow path extending from the air inlet 18 to the second air outlet 22 and out of the chamber 36 through the third air outlet 32 . The aerosol generating system includes a cartridge assembly and an aerosol generating device 38 wherein the aerosol generating device includes a cavity 40 for at least partially receiving the cartridge assembly and a first and a second And a heater 42 for heating one or both of the compartments 4, 6.에어로졸 발생 시스템에 사용하기 위한, 근위단과 원위단을 갖는 카트리지 조립체는, 제1 공기 유입구(10) 및 제1 공기 유출구(14)를 갖는 제1 구획부(4) 및 제2 공기 유입구(18) 및 제2 공기 유출구(22)를 갖는 제2 구획부(6)를 포함하는 카트리지(2); 및 카트리지(2)를 부분적으로 둘러싸며 제3 공기 유출구를 갖는 마우스피스(30)를 포함한다. 카트리지(2) 및 마우스피스(30)