The aroma source unit includes an elongated solid member formed from a plurality of aroma fragments and a cylindrical member containing the elongated solid member. The cylindrical element includes a first end surface of the cylindrical element that forms an air inlet end, a second end surface of the cylindrical element that forms the air outlet end, and a side wall of the cylindrical element connecting the outer periphery of the first end surface of the cylindrical element and the outer periphery of the second end surface of the cylindrical element. The elongated solid member includes a first solid member end surface that forms an air inlet end, a second solid member end surface that forms an air outlet end, and a solid member side surface that extends into the outer periphery of the first solid member end surface and the outer periphery of the second end surface solid element. The elongated solid member is positioned to block the interior of the side wall of the cylindrical member by the side surface of the solid member contacting any portion of the interior surface of the side wall of the cylindrical member. The first space is provided at least between the first end surface of the cylindrical element and the first end surface of the solid element or between the second end surface of the cylindrical element and the second end surface of the solid element.Блок источника аромата включает в себя удлиненный сплошной элемент, сформированный из множества ароматических фрагментов, и цилиндрический элемент, содержащий удлиненный сплошной элемент. Цилиндрический элемент включает в себя первую торцевую поверхность цилиндрического элемента, которая формирует воздуховпускной конец, вторую торцевую поверхность цилиндрического элемента, которая формирует воздуховыпускной конец, и боковую стенку цилиндрического элемента, соединяющую внешнюю периферию первой торцевой поверхности цилиндрического элемента и внешнюю периферию второй торцевой поверхности цилиндрического элемента. Удли
