Cigarettes are provided which contain a filtering system and flavorants encapsulated with polyvinyl acetate, wherein deactivation of a sorbent by the flavorant is reduced through the encapsulation of the flavorant within the polyvinyl acetate. A preferred flavorant is menthol. The encapsulated flavorants are prepared by mixing at least one flavorant with polyvinyl acetate and a solvent, such as ethanol, and forming the encapsulated flavorants. Methods of making cigarettes and smoking the articles are also provided.

The invention relates to a filter material for a smoking product, comprising a nonwoven material, wherein the nonwoven material is hydro-entangled, the hydro-entangled nonwoven material contains min. 50% and max. 90% wood cellulose fibres, min. 10% and max. 50% fibres from regenerated cellulose and less than 30% non-natural polymers, in relation to the mass of the hydro-entangled nonwoven material, and together the amount of wood cellulose fibres and fibres from regenerated cellulose make up at least 70% of the mass of the hydro-entangled nonwoven material, and the hydro-entangled nonwoven material has a density of min 100 kg/m.sup.3 and max. 300 kg/m.sup.3 and a thickness of min. 100 μm and max. 1000 μm. The invention also relates to a segment with the filter material, a smoking product and a production method.

The invention relates to a filter material for a smoking product, comprising a nonwoven material, wherein the nonwoven material is hydro-entangled, the hydro-entangled nonwoven material contains min. 50% and max. 90% wood cellulose fibres, min. 10% and max. 50% fibres from regenerated cellulose and less than 30% non-natural polymers, in relation to the mass of the hydro-entangled nonwoven material, and together the amount of wood cellulose fibres and fibres from regenerated cellulose make up at least 70% of the mass of the hydro-entangled nonwoven material, and the hydro-entangled nonwoven material has a density of min 100 kg/m.sup.3 and max. 300 kg/m.sup.3 and a thickness of min. 100 μm and max. 1000 μm. The invention also relates to a segment with the filter material, a smoking product and a production method.

The invention relates to a filter material and/or filler material for mouthpieces for use with smoking products or HNB products, the filter material and/or filler material being based on cellulose acetate filaments, at least parts of which are in the form of hollow cellulose acetate filaments. The invention also relates to a mouthpiece for use with smoking products or HNB products, the mouthpiece comprising a filter material and/or filler material of the type according to the invention. The invention also relates to a cigarette filter comprising such a filter material and/or filler material, and to a corresponding method for manufacturing a filter material and/or filler material for mouthpieces for use with smoking products or HNB products.

The invention relates to a filter material and/or filler material for mouthpieces for use with smoking products or HNB products, the filter material and/or filler material being based on cellulose acetate filaments, at least parts of which are in the form of hollow cellulose acetate filaments. The invention also relates to a mouthpiece for use with smoking products or HNB products, the mouthpiece comprising a filter material and/or filler material of the type according to the invention. The invention also relates to a cigarette filter comprising such a filter material and/or filler material, and to a corresponding method for manufacturing a filter material and/or filler material for mouthpieces for use with smoking products or HNB products.

There is provided a non-combustible aerosol delivery system for filtering exhaled breath, the aerosol delivery system including a power source; a filter unit; an inhalate airflow path adapted to convey vapor generated by the aerosol delivery system to the user during an inhalation, and an exhalate airflow path adapted to convey breath from the user to the filter unit during an exhalation into the aerosol delivery system; wherein the filter unit contains at least one filter, and wherein the at least one filter comprises glass fiber, polypropylene, or combinations thereof.

There is provided a non-combustible aerosol delivery system for filtering exhaled breath, the aerosol delivery system including a power source; a filter unit; an inhalate airflow path adapted to convey vapor generated by the aerosol delivery system to the user during an inhalation, and an exhalate airflow path adapted to convey breath from the user to the filter unit during an exhalation into the aerosol delivery system; wherein the filter unit contains at least one filter, and wherein the at least one filter comprises glass fiber, polypropylene, or combinations thereof.

Some embodiments of the present disclosure provide a smoking article filter having a flavoring agent uniformly distributed in the smoking article filter, which is in a solid state at room temperature and includes at least one natural wax and a flavoring component soaked into the at least one natural wax.

Some embodiments of the present disclosure provide a smoking article filter having a flavoring agent uniformly distributed in the smoking article filter, which is in a solid state at room temperature and includes at least one natural wax and a flavoring component soaked into the at least one natural wax.

A method for preparing a tar extract from a discarded cigarette butt and use of the tar extract in a cigarette includes the following steps: (1) adding the discarded cigarette butt to an extraction solvent, and carrying out microwave-assisted extraction to obtain an extraction solution; and (2) centrifuging the extraction solution, carrying out silica gel column chromatography on the supernatant, carrying out elution by using a petroleum ether-ethyl acetate mixed solution as a mobile phase, and collecting the resulting elution fraction to obtain the tar extract. In the method, the tar is extracted from the discarded cigarette butt as a raw material. Through the microwave-assisted extraction and separation by the silica gel column chromatography, harmful substances in the tar of the cigarette butt are removed, and the components with aroma characteristics are retained, and the tar extract is applied to a low-end cigarette.