Provided herein are cellulose acetate tow bands having less than 0.1 wt. % titanium dioxide, wherein the content of titanium dioxide is measured by ashing and/or by titanium particle count density. Also provided herein is a method of measuring the titanium dioxide content of cellulose acetate tow by ashing. Also provided herein is a method for measuring the color of cellulose acetate tow.

An object is to mitigate clogging of spinneret holes which occurs as the passage of spinning time even though cellulose acetate has a small titanium oxide content or contains no titanium oxide and to prevent a reduction in pressure drop of a cellulose acetate band. A cellulose acetate fiber, in which a titanium oxide content is not greater than 0.05 wt. %, a calcium content is not greater than 20 ppm, and a magnesium content is not less than 30 ppm.

A filter for an vaporizer has a housing having a sidewall and a top. A filter element is contained in the housing adjacent to the top. The filter element has an outer element concentrically arranged around an inner element. The outer element contains elongated fibrous filtering members containing quartz wool in order to reduce heavy metals contained in vapor passing through the filter. The inner element contains and delivers to the user flavorings or medications. A removable sanitary wrapper is disposed around the housing of the filter. The filter may also be configured as a replacement mouthpiece for a vaporizer.

A filter for an vaporizer has a housing having a sidewall and a top. A filter element is contained in the housing adjacent to the top. The filter element has an outer element concentrically arranged around an inner element. The outer element contains elongated fibrous filtering members containing quartz wool in order to reduce heavy metals contained in vapor passing through the filter. The inner element contains and delivers to the user flavorings or medications. A removable sanitary wrapper is disposed around the housing of the filter. The filter may also be configured as a replacement mouthpiece for a vaporizer.

A cooling filter rod, an application, and a cigarette are provided. The cooling filter rod is mainly formed by cooling particles. The cooling particle includes a particle body and a shell coated on the particle body. The shell or the particle body contains a phase change material. The phase change material is coated on the surface of the particle material to form cooling particles, and the cooling particles are integrally formed into a cooling filter rod, which can be directly used for cigarette production after being compounded with conventional filter rods. The cooling effect can be controlled according to the amount of the phase change material and the cooling filter rod. Such a filter rod can realize industrial production and has low cost and good cooling effect.

A mouthpiece for a smoking device is provided. The mouthpiece comprises a porous substrate. The porous surface comprises a wall having an outer surface having an outer cross-sectional shape and an inner surface having an inner cross-sectional shape. The inner surface defines a hollow interior space. A wall thickness is defined by the outer and inner surfaces. The porous substrate has a specific hardness of at least about 1.5 hardness % per weight (g) per length (mm) of the porous substrate. The porous substrate has a porosity of about 50% to about 70%. The inner and outer surfaces provide a wall thickness of about 20% to 60% of an area defined by the outer cross-sectional shape.

A magnetizable object within a smoking article or tobacco product that has magnetic properties optimized to enable efficient magnetic retrieval of the smoking article from the environment in a manner that is independent of spatial orientation of the article with respect to the magnetic field.

A magnetizable object within a smoking article or tobacco product that has magnetic properties optimized to enable efficient magnetic retrieval of the smoking article from the environment in a manner that is independent of spatial orientation of the article with respect to the magnetic field.

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 filter device including a Bernoulli element is provided. The filter device includes a housing, a plurality of permeable membranes positioned in association with the housing to create a plurality of chambers in the housing, and a Bernoulli element positioned within one chamber, wherein the Bernoulli element causes airflow and pressure to vary within the one chamber when fluid comprising smoke is drawn into the filter device.