In order to provide a hygiene mouthpiece element which makes it possible to reliably prevent the transmission of micro-organisms, in particular fungi and bacteria, and viruses when using a water pipe, a hygiene mouthpiece element is proposed, comprising a first end section which is configured for connection to a handle mouthpiece element of a water pipe and comprising a second end section which is configured as a mouth-side free end, wherein the hygiene mouthpiece element comprises a first filter element, wherein the first filter element comprises at least one adsorbing material and/or wherein the hygiene mouthpiece element comprises a second filter element, wherein the second filter element comprises metal oxide and/or electrolytically charged fibres.

A device for filtering smoke, in particular tobacco and/or cannabis cigarette filters, comprising a jacket, in which jacket there are provided at least a first portion, a second portion and a third portion, the second portion being arranged between the first portion and the third portion, wherein in the first section a first nonwoven filter material, in the second section a porous filter material, and in the third section a second nonwoven filter material being provided in the third section; wherein a fourth section is provided in the jacket, wherein the third section is arranged between the second section and the fourth section, and wherein the fourth section is arranged such that, when flowing through the jacket, a pressure drop across the fourth section is lower than a pressure drop across the third section.

A filter assembly has an outer housing having an open first end and an open second end. An inner filter housing is within the outer housing adjacent the second end, and a gasket is provided at the first end of the outer housing. An internal chamber is provided between the first end of the outer housing and the inner filter housing, where during use, fluid from the within the internal chamber is drawn out the second end of the outer housing by way of the inner filter housing. A filter is provided within the inner filter housing. The gasket forms a gasketed opening smaller than the open first end of the outer housing. The gasket may extend axially adjacent a wall of the outer housing and abut the inner filter housing, such that the internal chamber is defined by the gasket and the inner filter housing.

The present invention addresses the problem of providing a filter for a smoking article, or the like, which does not reduce, more than necessary, components affecting flavor which are contained in mainstream smoke, and which does not release aroma components other than an aroma component which is attributable to tobacco smoke. The foregoing problem is solved by a filter for a smoking article, the filter comprising a filter segment which does not release aroma components and which has a porous material that includes: inactive particles which do not selectively reduce components contributing to flavor with respect to raw tar in tobacco smoke; and a non-fibrous binder resin.

The invention relates to a cigarette filter. In particular, the present invention relates to a new cigarette filter, in which materials of natural origin are used that have not been applied in this special field before. More particularly, the present invention relates to a cigarette filter, which can be used for absorbing the toxic components of cigarette smoke, and lowering the tissue damage triggered by cigarette smoke on the respiratory organs, the cardiovascular system and the mucosa. Especially the present invention relates to a cigarette filter containing alginate.

Embodiments described herein provide materials and methods for the absorption or filtration of various species and analytes. In some cases, the materials may be used to remove or reduce the amount of a substance in vapor sample (e.g., cigarette smoke).

The embodiments herein provide a filter for cigarette comprising graphene nano-composite based material enclosed in a casing. The filter is reusable and is plugged to any cigarette, or tobacco smoking products. The filter is a stand-alone product or manufactured integrally with each individual cigarette. The filter provides a safe smoking option to tobacco smokers without changing their smoking habits by reducing the tar content and other toxic chemicals in the inhaled smoke. The graphene based nanocomposite filter adsorbs the toxic agents from the smoke (of cigarette, beedi, hookah etc). The filter is fabricated by treating ceramic particles and coating them with carbon particles. The carbon particles are carbonized. The ceramic particles coated with carbon are segregated based on shape and size and treated chemically to convert carbon into graphene under inert conditions. The graphene coated particles are chemically functionalized for improved filtration.

Provided are: a smoking product that has a tobacco rod and a filter comprising granular activated carbon, wherein the lightness L* value of said granular activated carbon in the CIE Lab color space is 11.50-19.00 and the acetone adsorption capacity is 29.0-41.0% percentage by mass; a method for producing said smoking product; and a method for distinguishing granular activated carbon.

The present disclosure relates to smoking substitute consumables, including an aerosol-forming article comprising an aerosol-forming substrate and a terminal filter element at a downstream axial end of the article/consumable. The terminal filter element may comprise a hollow bore extending from an upstream axial end of the terminal filter element to a downstream axial end of the terminal filter element. The hollow bore may be off-set from the axial centre of the terminal filter element.

A graphene adsorbing material, a preparation method therefor and application thereof, and a cigarette filter tip and a cigarette are provided. The graphene adsorbing material comprises a fiber carrier, graphene and doped elements wherein the graphene and the doped elements are loaded on the fiber carrier and the doped elements comprise at least one of Al, Si and Fe. The graphene adsorbing material is obtained by contacting the fibers with the graphene material to load the graphene material on the fibers. By introducing the graphene and the doped elements in the fiber carrier, harmful substances with a type of fused aromatic hydrocarbons such as benzopyrene in smoke can be specifically adsorbed, filtered and removed; while nicotine and the other harmless substances are retained, and thus the smoking taste of a cigarette is not affected. The cigarette filter tip can effectively adsorb cancerogenic substances with a type of fused aromatic hydrocarbons such as benzopyrene in smoke to reduce harm of smoking; meanwhile, the pleasure of smoking and the mellow taste of the smoke are not affected. Besides, the graphene adsorbing material can also prevent the phenomenon that a cigarette holder gets mildewed due to humid environment and the other factors.