A reservoir (1) for rod-like elements (R) for tobacco industry, configured to be connected to a first feeding duct (2), to a second feeding duct (3) and to a receiving duct (10) for receiving the rod-like elements (R) from the reservoir (1), wherein the reservoir (1) has adjustable capacity and is coupled with filling level sensing means (14, 15) for sensing a filling level of the reservoir (1). The reservoir comprises two chambers (12, 13) having adjustable capacity and separated by a partition (24). The first chamber (12) is coupled with a first filling level sensing means (14) for sensing a filling level of the first chamber (12), and the second chamber (13) is equipped with a second filling level sensing means (15) for sensing a filling level of the second chamber (13).

This filler element is used in a flavor inhaler, and comprises: a folded part in which one sheet composed of a nonwoven fabric has been folded in the width direction intersecting the longitudinal direction thereof, and the diameter thereof has been reduced to a size not greater than the diameter of the filler element; and wrapping paper that is wrapped on the folded part. A section of the folded part in the circumferential direction thereof has an opening that is open along the axial direction of the folded part, and a capsule encapsulating an additive is placed on the interior of the folded part via the opening.

An installation is arranged for serially forming a plurality of substrates for aerosol generation, and includes: a feeding means arranged for feeding a continuous web of substrate material, and a rotating cutting wheel having multiple cutting dies arranged circumferentially and for cutting out this continuous web to define a plurality of substrates and then for removing each defined substrate from each cutting die at a chosen instant to make it fall at a chosen position.

A system is provided for checking a presence and integrity of taggant applied to components of aerosol-generating articles during manufacture of the aerosol-generating articles on a manufacturing line, the system including: a first sensor configured to detect a taggant applied to a surface of a material web and to determine that the taggant has been applied to meet a predetermined continuity of application quality condition; and a second sensor located downstream of the first sensor on the manufacturing line, the second sensor configured to inspect portions of the material web after the material web has been cut into portions and to confirm at least one of a predetermined profile of the taggant and a predetermined concentration of the taggant. A method of checking a presence and integrity of taggant applied to components of aerosol-generating articles during manufacture of the articles on a manufacturing line is also provided.