An induction heating assembly for a vapour generating device includes an induction coil and a low-pass filter positioned adjacent to the induction coil. The low-pass filter is electrically connected to the induction coil to act as a low-pass filter for the induction coil and is shaped to extend substantially across at least one side of the induction coil to provide an electromagnetic shield for the induction coil.

An induction heating assembly for a vapour generating device includes an induction coil and a low-pass filter positioned adjacent to the induction coil. The low-pass filter is electrically connected to the induction coil to act as a low-pass filter for the induction coil and is shaped to extend substantially across at least one side of the induction coil to provide an electromagnetic shield for the induction coil.

An induction heatable cartridge for use with an induction heating assembly includes a solid vaporisable substance and at least one ring-shaped induction heatable susceptor held within and surrounded by the vaporisable substance. The susceptors are held in position such that, when the cartridge is positioned in an induction circuit in use, different regions of the outer edge of the one or more susceptors are at different distances from the induction circuit to provide different heating characteristics in the different regions. The centres of each of the at least one susceptors are aligned along a common axis.

An induction heatable cartridge for use with an induction heating assembly includes a solid vaporisable substance and at least one ring-shaped induction heatable susceptor held within and surrounded by the vaporisable substance. The susceptors are held in position such that, when the cartridge is positioned in an induction circuit in use, different regions of the outer edge of the one or more susceptors are at different distances from the induction circuit to provide different heating characteristics in the different regions. The centres of each of the at least one susceptors are aligned along a common axis.

An aerosol generating system comprises an aerosol generating substrate, an inductor for generating a primary electromagnetic field, a primary susceptor configured to be inductively heated by the primary electromagnetic field and to solely heat the aerosol generating substrate, and a secondary susceptor configured to solely generate a secondary electromagnetic field. The secondary electromagnetic field is generated under the influence of the primary electromagnetic field and acts in opposition to the primary electromagnetic field.

An aerosol generating system comprises an aerosol generating substrate, an inductor for generating a primary electromagnetic field, a primary susceptor configured to be inductively heated by the primary electromagnetic field and to solely heat the aerosol generating substrate, and a secondary susceptor configured to solely generate a secondary electromagnetic field. The secondary electromagnetic field is generated under the influence of the primary electromagnetic field and acts in opposition to the primary electromagnetic field.

An aerosol generating substrate element includes an aerosol generating substrate comprising a glycerine content of between about 10% and about 30% and at least one paper layer circumscribing the aerosol generating substrate. The paper layer has a thickness in a range from about 78 micrometers to about 160 micrometers. At least about 80% of the aerosol generating substrate circumference is circumscribed by less than two paper layers.

An aerosol generating article (10) includes an aerosol generating substrate (20), a filter element (22), and a first paper wrapper (30) and a second paper wrapper (40) circumscribing the aerosol forming substrate. The first paper wrapper having a thickness in a range from 40 about 90 micrometers to about 160 micrometers. The second paper wrapper joining the aerosol forming substrate to a filter element.

An aerosol generating article (10) includes an aerosol generating substrate (20), a filter element (22), and a first paper wrapper (30) and a second paper wrapper (40) circumscribing the aerosol forming substrate. The first paper wrapper having a thickness in a range from 40 about 90 micrometers to about 160 micrometers. The second paper wrapper joining the aerosol forming substrate to a filter element.

An aerosol generating substrate element is circumscribed by exactly two paper layers that do not extend beyond an aerosol generating substrate. The aerosol generating substrate includes from about 10% to about 30% glycerine by weight. The first paper wrapper and the second paper wrapper have a combined thickness in a range from about 60 micrometres to about 200 micrometres. The first paper wrapper does not overlap itself and a second paper wrapper does not overlap itself.