GB2615572A - Case - Google Patents

Abstract

A carry case 10 comprises a main body 14 including a storage area 16 for an aerosol delivery device, a lid 12 having an open position and a closed position, a battery status indicator (46,fig.4), and a controller (44,fig.4). A radio-frequency identification (RFID) tag (43,fig.4) and an RFID reader (42,fig.4) are configured to provide a signal indicative of whether the lid is open or closed. The controller is configured to receive the signal indicative of whether the lid is open or closed from the RFID reader and to activate the battery status indicator when a signal indicates that the lid 12 changes from a closed position to an open position. The case may include a port 18 for charging a battery of an aerosol delivery device stored therein or for charging a battery (48,fig.4) of the case. The case may be used to charge a battery of an aerosol delivery device stored therein.

Description

Technical Field

The present specification relates to a case (e.g. a carry case), in particular a case for an aerosol delivery device.

Background

Smoking articles, such as cigarettes, cigars and the like burn tobacco during use to create tobacco smoke. Attempts have been made to provide alternatives to these articles io by creating products that release compounds without combusting. For example, tobacco heating devices heat an aerosol provision substrate such as tobacco to form an aerosol by heating, but not burning, the substrate. An aerosol delivery device may be provided with a case, such as a carry case, for retaining the device when not in use. There remains a need for further developments in this field.

Summary

In a first aspect, this specification describes a case for an aerosol delivery device. The case comprises: a lid having an open position and a closed position; a radio-frequency identification (RFID) tag and an RFID reader configured to provide a signal indicative of whether the lid is open or closed; a battery status indicator; and a controller configured to receive the signal from the RFD) reader and to activate the battery status indicator when signal indicates that the lid changes from a closed position to an open position.

In one example embodiment, the RFID tag is provided on the lid and the RFID reader is provided within a main body of the case. Alternatively, the RFID reader maybe provided on the lid and the RFID tag maybe provided within a main body of the case.

The battery status indicator may comprise one or more light emitting diodes.

The battery status indicator may indicate a charge level of the case. Alternatively, or in addition, the battery status indicator may indicate a charge level of an aerosol delivery device received in the case.

In a second aspect, this specification describes a method comprising: receiving a signal from a radio-frequency identification (RFID) reader indicative of whether a lid of a case for an aerosol delivery device is in an open position or a closed position; and activating a battery status indicator (e.g. one or more light emitting diodes) of the case in the event that the signal indicates that the lid changes from a closed position to an open position.

In one example embodiment, an RFID tag is provided on the lid of the case and the RFID reader is provided within a main body of the case. Alternatively, the RFID reader may be provided on the lid and an RFID tag may be provided within a main body of the case.

The battery status indicator may indicate a charge level of the case. Alternatively, or in addition, the battery status indicator may indicate a charge level of an aerosol delivery device received in the case.

In a third aspect, this specification describes a kit of parts comprising a case as defined in the first aspect, an aerosol delivery device and an article for use in the aerosol delivery device. The aerosol delivery device may be a non-combustible aerosol generating device. The article may be a removable article comprising an aerosol generating material.

Brief Description of the Drawings

Example embodiments will now be described, by way of example only, with reference to the following schematic drawings, in which: FIG. i shows a case for an aerosol delivery device in accordance with an example embodiment; FIG. 2 is a block diagram of a non-combustible aerosol delivery device in accordance with an example embodiment; FIG. 3 is a flow chart showing an algorithm in accordance with an example embodiment; FIG. 4 is a block diagram of a system in accordance with an example embodiment; FIG. 5 is a flow chart showing an algorithm in accordance with an example embodiment; FIGS. 6 to 8 are block diagrams of displays in accordance with example embodiments; FIG. 9 is a flow chart showing an algorithm in accordance with an example embodiment; -3 -FIG. to is a flow chart showing an algorithm in accordance with an example embodiment; and FIG. 11 is a block diagram of a system in accordance with an example embodiment.

Detailed Description

As used herein, the term "delivery system" is intended to encompass systems that deliver at least one substance to a user, and includes non-combustible aerosol provision systems that release compounds from an aerosol-generating material without combusting the aerosol-generating material, such as electronic cigarettes, _to tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosol-generating materials.

According to the present disclosure, a "combustible" aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is combusted or burned during use in order to facilitate delivery of at least one substance to a user.

According to the present disclosure, a "non-combustible" aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision 20 system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.

In some embodiments, the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.

In some embodiments, the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.

In some embodiments, the non-combustible aerosol provision system is an aerosol-generating material heating system, also known as a heat-not-burn system. An example of such a system is a tobacco heating system.

In some embodiments, the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, -4 -one or a plurality of which may be heated. Each of the aerosol-generating materials maybe, for example, in the form of a solid, liquid or gel and may or may not contain nicotine. In some embodiments, the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material. The solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product.

Typically, the non-combustible aerosol provision system may comprise a noncombustible aerosol provision device and a consumable for use with the non- /0 combustible aerosol provision device.

In some embodiments, the disclosure relates to consumables comprising aerosol-generating material and configured to be used with non-combustible aerosol provision devices. These consumables are sometimes referred to as articles

throughout the disclosure.

In some embodiments, the non-combustible aerosol provision system, such as a non-combustible aerosol provision device thereof, may comprise a power source and a controller. The power source may, for example, be an electric power source or an exothermic power source. In some embodiments, the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol-generating material or to a heat transfer material in proximity to the exothermic power source.

In some embodiments, the non-combustible aerosol provision system may comprise an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/or an aerosol-modifying agent.

In some embodiments, the consumable for use with the non-combustible aerosol provision device may comprise aerosol-generating material, an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol generation area, a housing, a wrapper, a filter, a mouthpiece, and/or an aerosol-modifying agent. -5 -

In some embodiments, the substance to be delivered may be an aerosol-generating material or a material that is not intended to be aerosolised. As appropriate, either material may comprise one or more active constituents, one or more flavours, one or more aerosol-former materials, and/or one or more other functional materials.

In some embodiments, the substance to be delivered comprises an active substance. The active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response. The active substance may for example be selected from nutraceuticals, nootropics, psychoactives. The active substance may be naturally occurring or synthetically obtained. The active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or 1312 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof. The active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical. In one embodiment, the active substance is a legally permissible recreational drug. In some embodiments, the active substance comprises nicotine. In some embodiments, the active substance comprises caffeine, melatonin or vitamin B12. In some embodiments, the active substance comprises or is derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is tobacco. In some embodiments, the substance to be delivered comprises a flavour.

Aerosol-generating material is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. Aerosol-generating material may, for example, be in the form of a solid, liquid or gel which may or may not contain an active substance and/or flavourants.

The aerosol-generating material may be an "amorphous solid". In some embodiments, the amorphous solid is a "monolithic solid". The acrosol-generating material may be non-fibrous or fibrous. In some embodiments, the aerosol-generating material may be a dried gel. The aerosol-generating material may be a solid material that may retain some fluid, such as liquid, within it. In some embodiments the retained fluid may be water (such as water absorbed from the surroundings of the aerosol-generating material) or the retained fluid may be solvent (such as when the aerosol-generating material is formed from a slurry). In some embodiments, the solvent may be water. -6 -

In some embodiments, the aerosol-generating material may for example comprise from about 5owt%, 6owt% or 7owt% of amorphous solid, to about 9owt%, 95wt% or mowt% of amorphous solid.

The aerosol-generating material may comprise one or more active substances and/or flavours, one or more aerosol-former materials, and optionally one or more other functional material.

The aerosol-former material may comprise one or more constituents capable of _to forming an aerosol. In some embodiments, the aerosol-former material may comprise one or more of glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, mesoErythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

The material may be present on or in a support, to form a substrate. The support may, for example, be or comprise paper, card, paperboard, cardboard, reconstituted material, a plastics material, a ceramic material, a composite material, glass, a metal, or a metal alloy. In some embodiments, the support comprises a susceptor. In some embodiments, the susceptor is embedded within the material. In some alternative embodiments, the susceptor is on one or either side of the material.

A consumable is an article comprising or consisting of aerosol-generating material, part or all of which is intended to be consumed during use by a user. A consumable may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/or an aerosol-modifying agent. A consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosol-generating material to generate aerosol in use. The heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor.

FIG. 1 shows a case for an aerosol delivery device, indicated generally by the reference numeral 10, in accordance with an example embodiment. The case 10 comprises a lid 12 and a main body 14. The main body 14 includes a storage area 16 for storing an aerosol delivery device (not shown in FIG. 1). The aerosol delivery device may be a noncombustible aerosol generating device, although this is not essential to all example embodiments.

As shown in an alternative orientation 11 of case 10, the case 10 further includes a port 18 that may be used for charging a battery of an aerosol delivery device stored in the storage area 16 or for charging a battery of the case 10. In one example embodiment, the battery of the case may be used to charge a battery of an aerosol delivery device _to stored in the storage area 16.

FIG. 2 is a block diagram of a non-combustible aerosol delivery device, indicated generally by the reference numeral zo, in accordance with an example embodiment. The aerosol delivery device zo (or a part thereof) may be stored within the area 16 of the case 10 described above. The device zo is a modular device, comprising a first part zia and a second part 21b. In some embodiments, the first part zia and the second part 21b may be stored separately in the case 10 (e.g. detached from one another). The aerosol delivery device 20 may comprise a tobacco heating system.

The first part 2ia of the device 20 includes a control circuit 22 and a battery 23. The second part 21b of the device 20 includes a heater 24 and a liquid reservoir 25 (that may collectively form an aerosol generator).

The first part 21a includes a first connector 26a (such as a USB connector). The first 25 connector 26a may enable connection to be made to a power source (e.g. a battery of the case 10 or an external power supply via the port 18 of the case in) for charging the battery 23, for example under the control of the control circuit 22.

The first part 21a also includes a second connector 26b that can be removably connected to a first connector 27 of the second part 21b.

In the use of the device 20, air is drawn into an air inlet of the heater 24, as indicated by the arrow 28. The heater is used to heat the air (e.g. under the control of the control circuit 22). The heated air is directed to the liquid reservoir 25, where an aerosol is generated. The aerosol exits the device at an air outlet, as indicated by the arrow 29 (for example into the mouth of a user of the device 20). -8 -

The liquid reservoir 25 may be provided by a removable article comprising an aerosol generating material. The aerosol generating material may comprise an aerosol generating substrate and an aerosol forming material.

It should be noted that the device 20 is described by way of example only. Many alternative devices could be stored within the case 10 in accordance with example embodiments.

FIG. 3 is a flow chart showing an algorithm, indicated generally by the reference numeral 30, in accordance with an example embodiment.

The algorithm 30 starts at operation 32, where a determination is made regarding whether the lid 12 of the case 10 has been opened. If not, the algorithm 30 moves to /5 operation 34 where no action is taken. The algorithm 30 may then terminate, or may return to the operation 32.

If it is determined in the operation 32 that the lid has been opened, then the algorithm 30 moves to operation 36 where action is taken in response to the opening of the lid. 20 Example actions are discussed further below.

Of course, the algorithm 30 shown in FIG. 3 is highly schematic and may be implemented in many different ways. For example, the algorithm 30 may be implemented as an interrupt routine, wherein the detection of the lid changing from a closed state to the opened state triggers the operation 36 (where action is taken).

FIG. 4 is a block diagram of a system, indicated generally by the reference numeral 40, in accordance with an example embodiment.

The system 40 comprises a radio-frequency identification (RFID) reader 42, an RFID tag 43, a controller 44, a display 46 and a power source 48. The RFID reader 42, the controller 44, the display 46 and the power source 48 may be within the main body 14 of the case 10 (as indicated by the dotted box 14' in FIG. 4). The RFID tag 43 may be comprised within the lid 12 of the case 10 (as indicated by the dotted box 12' in FIG. 4). -9 -

The display 46 is used as a battery status indicator, as discussed further below. The display 46 may indicate a charge level of the case 10 and/or a charge level of an aerosol delivery device received within the case.

The RFID reader 42 and the RFID tag 43 may be configured to provide a signal indicative of whether the lid is open or closed. For example, the signal may be provided to the controller 44, such that the controller 44 can activate the battery status indicator when the lid changes from a closed position to an open position.

_to The power source 48 (such as a battery) may provide power to the various elements within the main body of the case 10 (such as the RFID reader 42, the controller 44 and the display 46). In some example embodiments, the battery 23 of an aerosol delivery device zo mounted within the storage area 16 of the case 10 may be used to power the elements within the main body of the case in addition to, or instead of, the power source 48. Indeed in some example embodiments, the power source 48 may be omitted.

As discussed in detail below, the controller 44 is configured to control the display 46.

In an example embodiment, the RFID tag 43 may be a radio transponder and the RFID reader may be a radio receiver and transmitter. When the RFID tag 43 is triggered by an electromagnetic interrogation pulse from RFID reader 42, the RFID tag 43 provides digital data, identifying itself to the RFID reader 42.

In an example embodiment, the RFID reader 42 transmits interrogator signals and receives authentication replies from the RFID tag 43. When the lid 12 is in a closed position, the RFID reader 42 may be able to receive replies from the RFID tag 43 as the RFID tag 43 is in close proximity with the RFID reader 42 when the lid 12 is in the closed position. When the lid 12 is opened, the RFTD reader 42 may no longer receive 3o replies from the RFID tag 43, as the RFID tag 43 may not be in close proximity with the RFID reader 42 when the lid 12 is in an open position. In an example embodiment, the RFID reader 42 may have a range (e.g. a few centimetres) such that when the lid 12 is opened, the RFID reader 42 is unable to receive signals from the RFID tag 43 comprised within the lid 12.

-10 -The RFID reader 42 is therefore able to detect whether the lid 12 is in a closed position or open position. The RFID reader 42 may provide a signal to the controller 44, such that the controller 44 may activate the battery status indicator when the lid changes from a close position to an open position.

In an example embodiment, the RFID reader 42 and the RFID tag 43 may form an Active Reader Passive Tag (ARPT) system, where the RFID reader 42 may be an active reader transmitting interrogator signals and receiving authentication replies from the RFID tag 43, which may be a passive tag. Alternatively, the RFID reader 42 and the RFID tag 43 may form an Active Reader Active Tag (APAT) system, where the RFID reader 42 may be an active reader sending interrogator signals, and the RFID tag 43 may be an active tag that is activated with the interrogator signal from the active reader. Alternatively, the RFID reader 42 may be an active reader and the RFID tag 43 may be a Battery-Assisted Passive Tag (BAPT) which acts like a passive tag but comprises a power source (e.g. battery) to power the tag's return reporting signal.

In an example embodiment, the RFID tag 43 may be a passive tag powered by the energy from the interrogator signals received from the RFID reader 42 (active reader). Alternatively, the RFID reader 42 may be an active reader and the RFID tag 43 may be a Battery-Assisted Passive Tag (BAP'F) which acts like a passive tag but comprises a power source (e.g. battery) to power the tag's return reporting signal.

FIG. 5 is a flow chart showing an algorithm in accordance with an example embodiment.

The algorithm 50 starts at operation 32, where, as discussed above, a determination is made regarding whether the lid 12 of the case ro has been opened (i.e. changed from a closed position to an open position). That determination may be made by the controller 44, based on the output of the RFID reader 42. if not, the algorithm 50 moves to the operation 34 where no action is taken. The algorithm 30 may then terminate, or may return to the operation 32.

If it is determined in the operation 32 that the lid has been opened, then the algorithm 50 moves to operation 52 where a battery level is displayed (e.g. using the display 46), 35 thereby implementing operation 36 of the algorithm 30 described above. The battery level may be the state of charge of the power source 48 and/or the battery 23 of the device 20 described above. The operation 52 may continue whilst the lid remains opened. Alternatively, the operation 52 may continue for a defined period of time only, such that the battery display level is only presented for a short period of time after the lid is opened.

FIG. 6 is a block diagram of a battery status indicator 60. The battery status indicator 6o is an example of the display 46 and may be used to display a battery level, thereby implementing the operation 52 described above.

rn The battery status indicator 60 comprises a plurality of status indicator elements 61 to 68. The status indicator elements 61 to 68 may, for example, be light emitting diodes (LEDs) In response to the lid 12 of the case ro being opened, the indicator elements 61 to 68 may be selectively illuminated to provide an indication of a battery status (e.g. the charge level of the relevant battery -such as the power source 48 or the battery 23 of the device zo, if present). In this way, battery charge status information can be provided to the user when the case is opened, but does not need to be provided at other times (thereby reducing battery usage). In the example indicator 6o, the indicator elements 61 to 65 are illuminated and the indicator elements 66 to 68 are not illuminated.

FIG. 7 is a block diagram of a battery status indicator 70. The battery status indicator 70 is an example of the display 46 and may be used to display a battery level of both the power source 48 and the battery 23 of the device zo (if present), thereby implementing the operation 32 described above. The battery status indicator 70 comprises the first plurality of status indicator elements 61 to 68 and a second plurality of indicator elements 71 to 78. The first and second status indicator elements may, for example, be light emitting diodes (LEDs).

In response to the lid 12 of the case ro being opened, the first indicator elements 61 to 68 may be selectively illuminated to provide an indication of a charge level of the power source 48 and the second indicator elements 71 to 78 may be selectively illuminated to provide an indication of a charge level of the battery 23.

-12 -The battery status indicators 60 and 70 described above are two example embodiments; many variants are possible. By way of example, FIG. 8 is a block diagram of a battery status indictor 8o that may be used as the display 46 and may be used to display a battery level. The battery status indicator 8o comprises a single LED that can be illuminated in different colours in order to indicate the battery status. For example, the LED of the indictor 80 may be illuminated green if the battery level is good (e.g. above a first threshold), the indicator 8o may be illuminated red if the battery level is poor (e.g. below a second threshold) and the indicator 80 may be illuminated amber if the battery level is neither good nor poor (e.g. between the first and second thresholds).

Of course, two LEDs could be provided, with one indicating the status of the power source 48 and the other indicating the status of the battery 23.

In the example embodiments described above, action is taken in response to detecting the opening the lid of the case to. This is not essential to all example embodiments.

By way of example, FIG. 9 is a flow chart showing an algorithm, indicated generally by the reference numeral 90, in accordance with an example embodiment. The algorithm 90 has many similarities with the algorithm 30 described above.

The algorithm 90 starts at operation 92, where a determination is made regarding whether the lid 12 of the case to has been closed. If not, the algorithm 90 moves to operation 94 where no action is taken. The algorithm 90 may then terminate, or may return to the operation 92.

If it is determined in the operation 92 that the lid has been closed, then the algorithm moves to operation 96 where action is taken in response to the opening of the lid (such as providing a battery level indication, as discussed above).

In common with the algorithm 30 described above, the algorithm 90 shown in FIG. 9 is highly schematic and may be implemented in many different ways.

FIG. to is a flow chart showing an algorithm, indicated generally by the reference numeral too, in accordance with an example embodiment.

The algorithm too starts with operation tot, where a signal is received from an RFID reader (such as the RFID reader 42 of the system 40 described above). The signal is -13 -indicative of whether a lid (such as the lid 12) of a case for an aerosol delivery device being is in an open position or a closed position.

At operation 102, the controller 44 determines whether the signal received in the operation an is indicative of the lid position changing from a closed position to an open position. If so, the algorithm moves to operation 1o3; otherwise, the algorithm moves to operation 104 (where no action is taken).

At operation 103, the controller 44 may activate a battery status indicator of the case in /0 the event that the signal received in the operation Ka is determined to be indicative of the lid position changing from a closed position to an open position.

The various embodiments described herein are presented only to assist in understanding and teaching the claimed features. These embodiments are provided as a representative sample of embodiments only, and are not exhaustive and/or exclusive. It is to be understood that advantages, embodiments, examples, functions, features, structures, and/or other aspects described herein are not to be considered limitations on the scope of the invention as defined by the claims or limitations on equivalents to the claims, and that other embodiments maybe utilised and modifications may be made without departing from the scope of the claimed invention. Various embodiments of the invention may suitably comprise, consist of, or consist essentially of, appropriate combinations of the disclosed elements, components, features, parts, steps, means, etc., other than those specifically described herein. In addition, this disclosure mayinclude other inventions not presently claimed, but which may be claimed in future.

By way of example, FIG. 11 is a block diagram of a system, indicated generally by the reference numeral no, in accordance with an example embodiment. The system no comprises an RFID tag 112, a controller 44, a display 46, a power source 48 and an RFID reader 114. The RFID tag 112, the controller 44, the display 46 and the power source 48 may be within a main body 14 of a case io (as indicated by the dotted box 14" in FIG. in. The REED reader 114 may be within a lid 12 of the case io (as indicated by the dotted box 12" in FIG. 11). The controller 44, the display 46, and the power source 48 may operate as described above with reference to FIG. 4. Thus, the system no is identical to the system 40 described above, with the exception that the locations of the RFID tag and the RFID reader within the system have been reversed.

Claims (12)

1. -14 -Claims 1. A case for an aerosol delivery device comprising: a lid having an open position and a closed position; a radio-frequency identification (RFID) tag and an RFID reader configured to provide a signal indicative of whether the lid is open or closed; a battery status indicator; and a controller configured to receive the signal from the RFID reader and to activate the battery status indicator when signal indicates that the lid changes from a r() closed position to an open position.
2. 2. A case as claimed in claim 1, wherein the RFID tag is provided on the lid and the RFID reader is provided within a main body of the case.
3. 3. A case as claimed in claim 1, wherein the RFID reader is provided on the lid and the RFID tag is provided within a main body of the case.
4. 4. A case as claimed in any one of claims ito 3, wherein the battery status indicator comprises one or more light emitting diodes.
5. 5. A case as claimed in any one of claims ito 4, wherein the battery status indicator indicates a charge level of the case.
6. 6. A case as claimed in any one of claims ito 5, wherein the battery status indicator indicates a charge level of an aerosol delivery device received in the case.
7. 7. A method comprising: receiving a signal from a radio-frequency identification (RFID) reader indicative of whether a lid of a case for an aerosol delivery device is in an open position or a closed position; and activating a battery status indicator of the case in the event that the signal indicates that the lid changes from a closed position to an open position.
8. 8. A method as claimed in claim 7, wherein an RFID tag is provided on the lid of the case and the RFID reader is provided within a main body of the case.
9. -15 - 9. A method as claimed in claim 7 or claim 8, wherein the battery status indicator indicates a charge level of the case and/or a charge level of an aerosol delivery device received in the case.
10. 10. A kit of parts comprising a case as claimed in any one of claims ito 6, an aerosol delivery device and an article for use in the aerosol delivery device.
11. A kit of parts as claimed in claim 10, wherein the aerosol delivery device is a non-combustible aerosol generating device.
12. 12. A kit of parts as claimed in claim 10 or claim n, wherein the article is a removable article comprising an aerosol generating material.