A filter (10) for cigarettes having a wax tubular member (20) with at least one through opening (30) to allow the smoke to pass through. A second detachable tubular member (125) can be optionally added. Through opening (30) may have different shapes that determine how much the smoke temperature is reduced. Member (20) can be selectively depressed to further constrain the passage of smoke to reduce the smoke temperature and trap more gunk. The present was filter is biodegradable and may be used as a carrier for seeds that may bloom when the filter is discarded.

Provided is an aerosol generating system including a holder configured to generate aerosol by heating a cigarette; and a cradle including an inner space into which the holder is inserted. The holder is configured to be tiltable with respect the cradle. The holder is inserted into the inner space of the cradle and then tilted to generate the aerosol.

The invention discloses a starch-based multi-channel airflow unit and a preparation method and an application thereof. The preparation method of the present invention comprises the following steps: melting a polylactic acid, wherein a temperature of a first temperature control zone is 135° C. to 145° C., a temperature of a second temperature control zone is 175° C. to 185° C., a temperature of a third temperature control zone is 190° C. to 200° C., and a temperature of a fourth temperature control zone is 175° C. to 185° C.; gelatinizing a starch-based material, adding the starch-based material in the third temperature control zone and fully mixing the mixture; adding a polyol in the third temperature control zone, and fully mixing the mixture; and extruding out the mixed material through twin screws, sizing in vacuum, cooling and sizing, and winding and cutting to obtain the starch-based multi-channel airflow unit.

The invention discloses a starch-based multi-channel airflow unit and a preparation method and an application thereof. The preparation method of the present invention comprises the following steps: melting a polylactic acid, wherein a temperature of a first temperature control zone is 135° C. to 145° C., a temperature of a second temperature control zone is 175° C. to 185° C., a temperature of a third temperature control zone is 190° C. to 200° C., and a temperature of a fourth temperature control zone is 175° C. to 185° C.; gelatinizing a starch-based material, adding the starch-based material in the third temperature control zone and fully mixing the mixture; adding a polyol in the third temperature control zone, and fully mixing the mixture; and extruding out the mixed material through twin screws, sizing in vacuum, cooling and sizing, and winding and cutting to obtain the starch-based multi-channel airflow unit.

A cigarette filter comprises a first filter portion comprising an irregularly folded and packed polymer sheet, and a first cigarette filter wrapping paper surrounding the polymer sheet, wherein the polymer sheet comprises a first polymer layer containing polyolefin or polyester and a second polymer layer positioned on the first polymer layer and containing polyolefin.

A device for burning smoking material and inhaling the resulting smoke is disclosed. The device can include a tubular member formed from a dried leaf having an internal elongated cavity extending from an open end to a closed end. The elongated cavity can be configured to receive a smoking material. The smoking accessory can include a filter disposed within dried leaf and defining the closed end. The filter can have a recess formed in a surface of the cylindrical body along a curved face extending from the first end to the second end, the recess extending radially into the cylindrical body. The smoking accessory can include a capsule containing a flavoring agent disposed within the recess.

A device for burning smoking material and inhaling the resulting smoke is disclosed. The device can include a tubular member formed from a dried leaf having an internal elongated cavity extending from an open end to a closed end. The elongated cavity can be configured to receive a smoking material. The smoking accessory can include a filter disposed within dried leaf and defining the closed end. The filter can have a recess formed in a surface of the cylindrical body along a curved face extending from the first end to the second end, the recess extending radially into the cylindrical body. The smoking accessory can include a capsule containing a flavoring agent disposed within the recess.

The present disclosure provides an aerosol-forming article comprising an aerosol-forming substrate and an axially adjacent, downstream filter arrangement. In some implementations, the filter arrangement comprises an upstream filter element, an intermediate filter element and a terminal filter element. The upstream and terminal filter elements may be independently selected from a solid filter element and a hollow bore filter element. The intermediate filter element may be a hollow bore filter element having a greater bore diameter than any other hollow bore filter element in the filter arrangement.

The present disclosure provides an aerosol-forming article comprising an aerosol-forming substrate and an axially adjacent, downstream filter arrangement. In some implementations, the filter arrangement comprises an upstream filter element, an intermediate filter element and a terminal filter element. The upstream and terminal filter elements may be independently selected from a solid filter element and a hollow bore filter element. The intermediate filter element may be a hollow bore filter element having a greater bore diameter than any other hollow bore filter element in the filter arrangement.

The invention discloses a variable-ventilation filter tip and a cigarette. The filter tip includes a filter element and a coating layer. The coating layer wraps the filter element. The filter element includes a smoke inlet end and a smoke release end. A phase-change ventilation area and a non-phase-change ventilation area are arranged on the coating layer, a plurality of first ventilation holes are arranged in the phase-change ventilation area, and a plurality of second ventilation holes are arranged in the non-phase-change ventilation area. Outside air penetrates through the coating layer through the first ventilation holes and the second ventilation holes to enter a part of the filter element. A part in the filter element close to the smoke inlet end is provided with a starch tube. A phase-change material is filled in the first ventilation hole. A phase-change temperature of the phase-change material ranges from 45° C. to 60° C.