A hybrid graphene material and a filter capable of retaining, in whole or in part, polyaromatic hydrocarbons, carbonyl and other smoke compounds from tobacco products or industrial processes, having as adsorbent substances activated carbon and graphene materials, both supported by the same matrix and in the same filter compartment, which may or may not be attached to another conventional filter compartment of cellulose acetate fibers or similar polymer, and a method for manufacturing such material.

A hybrid graphene material and a filter capable of retaining, in whole or in part, polyaromatic hydrocarbons, carbonyl and other smoke compounds from tobacco products or industrial processes, having as adsorbent substances activated carbon and graphene materials, both supported by the same matrix and in the same filter compartment, which may or may not be attached to another conventional filter compartment of cellulose acetate fibers or similar polymer, and a method for manufacturing such material.

A smoke filter apparatus comprising a segmented conduit formed of a plurality of nesting sections and comprising one or more filters. The filters may comprise a preferred filter sequence, wherein the preferred filter sequence comprises a metal screen filter, a charcoal filter, and an acetate filter.

A smoke filter apparatus comprising a segmented conduit formed of a plurality of nesting sections and comprising one or more filters. The filters may comprise a preferred filter sequence, wherein the preferred filter sequence comprises a metal screen filter, a charcoal filter, and an acetate filter.

A paper for smoking articles containing cellulose fibers, and being made by adding cellulose nanofibers and filler particles serving as an absorbent or a catalyst, wherein primary particles of the filler particles have an average particle diameter of 1 μm or less.

A paper for smoking articles containing cellulose fibers, and being made by adding cellulose nanofibers and filler particles serving as an absorbent or a catalyst, wherein primary particles of the filler particles have an average particle diameter of 1 μm or less.

A reusable active filter tube includes a tube (1) inside which there is a carbon filter (3) and a sponge filter (4), that when viewed from the first end (6) of the tube placed in in the mouth of the user, it includes successively: a sponge filter (4), an adjacent carbon filter (3), a second silver screen (2) and a first silver screen (5), between the first silver screen (5) and the second silver screen (2) is a space forming the chamber (8), and between the first silver screen (5) and the second end (7) of the tube (1) there is a chamber (9) in which the smoking material is placed.

A filtration apparatus for use in a smoking apparatus has an inlet port and an outlet port. A filter pass-through tube is connected between the inlet and outlet ports. The filter pass-through tube has a blockage structure therein. A plurality of dispersion ports are positioned on a first side of the blockage structure and a plurality of collection ports positioned on a second side of the blockage structure. A filter chamber having a quantity of filtration material is positioned external of the filter pass-through tube and in fluid communication with the plurality of dispersion and collection ports. The filtration apparatus may be used in a smoking apparatus having a bowl, a water-impervious vessel having a stem extending therefrom, and a draw tube in fluid connection with the water-impervious vessel.

A tobacco smoke filter or filter element comprising a stiff outer wrapper engaged around a downstream thermoformed core of tobacco smoke filtering material and a further core longitudinally aligned therewith; the downstream thermoformed core having a profiled outer surface which defines with the stiff outer wrapper at least one longitudinally extending channel which extends the length of the downstream core.

The filter using technology for reducing the smell of tobacco smoke on hands, according to one embodiment of the present invention, comprises: a filter unit for filtering tobacco smoke, the filter unit being coupled to a tobacco shred; and filter-wrapping paper for wrapping the filter unit. The filter unit or the filter-wrapping paper may contain a material for reducing the smell of tobacco smoke. According to the embodiment of the present invention, green tea extracts containing catechin or other materials for reducing the smell of tobacco smoke, e.g. citric acids, glycerols, tannic acids and the like can be added to a tobacco filter to remove the smell from tobacco smoke generated during smoking, thus significantly lowering the strength of the smell of tobacco smoke on the hands of a smoker as compared to conventional tobacco filters.