EP3939443A1 - Article de génération d'aérosol et système de génération d'aérosol - Google Patents

Article de génération d'aérosol et système de génération d'aérosol Download PDF

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Publication number
EP3939443A1
EP3939443A1 EP20185837.0A EP20185837A EP3939443A1 EP 3939443 A1 EP3939443 A1 EP 3939443A1 EP 20185837 A EP20185837 A EP 20185837A EP 3939443 A1 EP3939443 A1 EP 3939443A1
Authority
EP
European Patent Office
Prior art keywords
aerosol generating
generating article
air inlet
secondary air
substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20185837.0A
Other languages
German (de)
English (en)
Inventor
Alec WRIGHT
Andrew Robert John ROGAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JT International SA
Original Assignee
JT International SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JT International SA filed Critical JT International SA
Priority to EP20185837.0A priority Critical patent/EP3939443A1/fr
Publication of EP3939443A1 publication Critical patent/EP3939443A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the present disclosure relates generally to aerosol generating articles, and more particularly to an aerosol generating article for use with an aerosol generating device for heating the aerosol generating article to generate an aerosol for inhalation by a user.
  • Embodiments of the present disclosure also relate to an aerosol generating system comprising an aerosol generating device and an aerosol generating article.
  • the present disclosure is particularly applicable to aerosol generating articles for use with a portable (hand-held) aerosol generating device, which may be self-contained and low temperature.
  • reduced-risk or modified-risk devices also known as aerosol generating devices or vapour generating devices
  • vapour generating devices Various devices and systems are available that heat or warm aerosol generating substances to generate an aerosol for inhalation by a user.
  • a commonly available reduced-risk or modified-risk device is the heated substrate aerosol generating device, or so-called heat-not-burn device.
  • Devices of this type generate an aerosol or vapour by heating an aerosol generating substrate to a temperature typically in the range 150°C to 300°C. Heating the aerosol generating substrate to a temperature within this range, without burning or combusting the aerosol generating substrate, generates a vapour which typically cools and condenses to form an aerosol for inhalation by a user of the device.
  • Aerosol generating devices can use one of a number of different approaches to provide heat to the aerosol generating substrate, including resistive heating and induction heating. Whichever approach is used to heat the aerosol generating substrate, it can be convenient to provide the aerosol generating substrate in the form of an aerosol generating article that is configured for use with an aerosol generating device.
  • Aerosol generating articles are known in the art and typically comprise an aerosol generating substrate positioned at a distal end of the aerosol generating article and a filter positioned at the proximal (mouth) end.
  • an aerosol generating article configured for use with an electrically-operated aerosol generating device having a heater, the aerosol generating article having a distal end and a mouth end downstream of the distal end, the aerosol generating article comprising:
  • an aerosol generating system comprising: an aerosol generating article having a distal end and a mouth end downstream of the distal end, the aerosol generating article comprising:
  • the aerosol generating article is configured for use with an aerosol generating device for heating the aerosol generating substrate, without burning the aerosol generating substrate, to volatise at least one component of the aerosol generating substrate and thereby generate a heated vapour which cools and condenses to form an aerosol for inhalation by a user of the aerosol generating device.
  • the aerosol generating device is a hand-held, portable, device.
  • vapour is a substance in the gas phase at a temperature lower than its critical temperature, which means that the vapour can be condensed to a liquid by increasing its pressure without reducing the temperature
  • aerosol is a suspension of fine solid particles or liquid droplets, in air or another gas.
  • the secondary air inlet is not blocked or obstructed prior to positioning the aerosol generating article in an aerosol generating device.
  • the aerosol generating substrate presents a higher resistance-to-draw than the secondary air inlet.
  • the secondary air inlet may be positioned closer to the distal end than to the mouth end. This positioning facilitates selective blocking of the secondary air inlet when the aerosol generating article is positioned in an aerosol generating device, for example when the aerosol generating article is inserted into a cavity, e.g., a heating chamber, of an aerosol generating device.
  • the aerosol generating article may include a wrapper.
  • the wrapper may circumscribe the aerosol generating substrate and may extend between the distal end and the mouth end to form a rod.
  • the wrapper may comprise a material which is substantially non-electrically conductive and non-magnetically permeable and may, for example, comprise a paper wrapper, e.g., comprising cigarette paper.
  • the use of a wrapper may facilitate manufacture and handing of the aerosol generating article and may enhance aerosol generation.
  • the secondary air inlet may extend through the wrapper.
  • a reliable airflow route is, therefore, provided from the secondary air inlet to the air outlet when the aerosol generating article is not positioned in an aerosol generating device.
  • the aerosol generating article may include a plurality of secondary air inlets.
  • the plurality of secondary air inlets may be spaced circumferentially around the wrapper.
  • the aerosol generating article may include first and second rows of circumferentially spaced secondary air inlets in the wrapper. The second row may be positioned downstream of the first row.
  • a reliable airflow route is thus provided between the secondary air inlets and the air outlet, for example even in the unlikely event that some of the secondary air inlets become unexpectedly blocked.
  • a low resistance-to-draw may also be achieved when a plurality of secondary air inlets are provided, thereby ensuring that there is substantially no airflow from the primary air inlet to the air outlet when the aerosol generating article is not positioned in an aerosol generating device.
  • the wrapper may cooperate with an inner surface of a cavity of an aerosol generating device when at least part of the aerosol generating article is positioned in the cavity to substantially block the secondary air inlet.
  • the secondary air inlet is thus reliably blocked when the aerosol generating article is positioned in an aerosol generating device, thus ensuring that when a user draws on the mouth end, air flows through the primary air inlet and not the secondary air inlet(s). This ensures that the air flows through the aerosol generating substrate and that an acceptable quantity of vapour is generated.
  • the aerosol generating article may include a vapour cooling element which may be positioned in the wrapper downstream of the aerosol generating substrate.
  • the vapour cooling element promotes cooling of the vapour as it flows from the aerosol generating substrate towards the mouth end to form an aerosol with suitable characteristics for inhalation by a user.
  • the secondary air inlet may be provided in the vapour cooling element.
  • the secondary air inlet in the vapour cooling element may be aligned with the secondary air inlet in the wrapper.
  • the vapour cooling element may comprise a hollow tube, e.g., a hollow paper tube, which may have a thickness greater than a thickness of the wrapper.
  • the secondary air inlet may be provided in a wall of the hollow tube.
  • the aerosol generating article may comprise a mouthpiece filter positioned at the mouth end.
  • the filter may, for example, comprise cellulose acetate fibres and/or paper.
  • the filter may comprise one or more filter segments. Each filter segment may be individually wrapped with a wrapper and the filter segments may be further combined by a combining wrapper.
  • the aerosol generating article may further comprise ventilation holes between the mouth end and the secondary air inlet.
  • the ventilation holes are thus arranged in an area of the aerosol generating article where they are not blocked when the aerosol generating article is positioned in an aerosol generating device.
  • the ventilation holes may allow an aerosol with different characteristics to be generated during use of the aerosol generating article in an aerosol generating device.
  • the ventilation holes may have an open surface area lower than an open surface area of the secondary air inlet.
  • the ventilation holes provide a higher resistance-to-draw than the secondary air inlet such that air tends to flow through the secondary air inlet to the air outlet if a user draws on the mouth end when the aerosol generating article is not positioned in an aerosol generating device. It will be understood that the resistance-to-draw is dependent upon the size of the ventilation holes.
  • the aerosol generating substrate may comprise a non-liquid aerosol generating material, for example any type of solid or semi-solid material.
  • Example types of aerosol generating substrate include powder, granules, pellets, shreds, strands, particles, gel, strips, loose leaves, cut leaves, cut filler, porous material, foam material or sheets.
  • the aerosol generating substrate may comprise plant derived material and in particular, may comprise tobacco. It may advantageously comprise reconstituted tobacco, for example including tobacco and any one or more of cellulose fibres, tobacco stalk fibres and inorganic fillers such as CaCO3.
  • the aerosol generating device with which the aerosol generating articles are intended for use may be referred to as a "heated tobacco device", a “heat-not-burn tobacco device”, a “device for vaporising tobacco products”, and the like, with this being interpreted as a device suitable for achieving these effects.
  • the features disclosed herein are equally applicable to devices which are designed to vaporise any aerosol generating substrate.
  • the aerosol generating substrate may comprise a plug of aerosol generating material. That is, the aerosol generating substrate may comprise an aerosol generating plug.
  • the aerosol generating substrate may comprise a tobacco plug.
  • the aerosol generating article may be formed substantially in the shape of a rod, and may broadly resemble a cigarette, having a tubular region with an aerosol generating substrate arranged in a suitable manner.
  • the mouthpiece filter may be in coaxial alignment with the aerosol generating substrate.
  • One or more vapour collection regions, cooling regions (e.g., a vapour cooling element as described above), and other structures may also be included in some designs.
  • the aerosol generating substrate may comprise an aerosol-former.
  • aerosol-formers include polyhydric alcohols and mixtures thereof such as glycerine or propylene glycol.
  • the aerosol generating substrate may comprise an aerosol-former content of between approximately 5% and approximately 50% on a dry weight basis.
  • the aerosol generating substrate may comprise an aerosol-former content of between approximately 10% and approximately 20% on a dry weight basis, and possibly approximately 15% on a dry weight basis.
  • the aerosol generating substrate may release volatile compounds.
  • the volatile compounds may include nicotine and/or flavour compounds such as tobacco flavouring.
  • the heater may be an internal heater which is inserted in the aerosol generating substrate.
  • it may comprise a heating blade or pin.
  • the heater may comprise an external heater, for example to heat the aerosol generating substrate through the wrapper.
  • the heater may comprise a heating tube comprising a chamber dimensioned to at least receive the aerosol generating substrate of the aerosol generating article.
  • the heater may comprise a resistive heater.
  • the resistive heater may comprise a resistive heating element, for example a resistive heating blade or a resistive heating tube.
  • the heater may comprise an inductively heatable susceptor and the aerosol generating device may comprise an electromagnetic field generator, such as an induction coil, arranged to generate an alternating electromagnetic field for inductively heating the inductively heatable susceptor.
  • an electromagnetic field generator such as an induction coil
  • the induction coil may comprise a Litz wire or a Litz cable. It will, however, be understood that other materials could be used.
  • the induction coil may be substantially helical in shape and may extend around a heating chamber in which the aerosol generating article is positioned in use.
  • the circular cross-section of a helical induction coil may, for example, facilitate the insertion of the aerosol generating article comprising the aerosol generating substrate and optionally one or more of said inductively heatable susceptors, into the heating chamber and ensures uniform heating of the aerosol generating substrate.
  • the inductively heatable susceptor may comprise one or more, but not limited, of aluminium, iron, nickel, stainless steel and alloys thereof, e.g. Nickel Chromium or Nickel Copper. With the application of an electromagnetic field in its vicinity, the susceptor may generate heat due to eddy currents and magnetic hysteresis losses resulting in a conversion of energy from electromagnetic to heat.
  • the induction coil may be arranged to operate in use with a fluctuating electromagnetic field having a magnetic flux density of between approximately 20mT and approximately 2.0T at the point of highest concentration.
  • the aerosol generating device may include a power source and circuitry which may be configured to operate at a high frequency.
  • the power source and circuitry may be configured to operate at a frequency of between approximately 80 kHz and 500 kHz, possibly between approximately 150 kHz and 250 kHz, and possibly at approximately 200 kHz.
  • the power source and circuitry could be configured to operate at a higher frequency, for example in the MHz range, depending on the type of inductively heatable susceptor that is used.
  • the cavity of the aerosol generating device may comprise blocking means configured for obstructing the secondary air inlet when the aerosol generating substrate of the article is in a heating position in the cavity.
  • the blocking means may be stationary or retractable.
  • the blocking means may comprise at least one resilient ring.
  • FIG. 1 there is shown diagrammatically an example of an aerosol generating article 10.
  • the aerosol generating article 10 is elongate and substantially cylindrical and is of a so-called "stick" type.
  • the aerosol generating article 10 has a distal (or upstream) end 12 and a mouth (or downstream) end 14.
  • the aerosol generating article 10 comprises the following elements arranged sequentially and in co-axial alignment in a downstream direction, in other words from the distal end 12 to the mouth end 14: an aerosol generating substrate 16, an optional vapour cooling element 18, and an optional filter 20, for example comprising cellulose acetate fibres.
  • the elements are all assembled inside a wrapper 22 to form a rod, and the wrapper 22 holds the elements in position to form the aerosol generating article 10.
  • the wrapper 22 is substantially non-electrically conductive and non-magnetically permeable, and typically comprises a paper wrapper, e.g., cigarette paper.
  • the aerosol generating substrate 16 comprises a solid or semi-solid material (i.e. a non-liquid material) and may comprise plant derived material, and in particular tobacco.
  • the aerosol generating substrate 16 typically comprises a tobacco plug.
  • the aerosol generating substrate 16 may include an aerosol-former, such as glycerine or propylene glycol, to facilitate the generation of a vapour or aerosol when heated.
  • the vapour cooling element 18 typically comprises a hollow paper tube 18a having a thickness which is greater than the thickness of the paper wrapper 22. As heated vapour flows through the vapour cooling element 18 in the downstream direction, from the aerosol generating substrate 16 towards the mouth end 14, the vapour cools and condenses to form an aerosol with suitable characteristics for inhalation by a user.
  • the vapour cooling element 18 e.g. hollow paper tube 18a
  • the vapour cooling element 18 may contact the aerosol generating substrate 16 at a first end as shown in Figure 1 .
  • the aerosol generating article 10 includes: a primary air inlet 24 at the distal end 12, upstream of the aerosol generating substrate 16; a plurality of secondary air inlets 26 downstream of the aerosol generating substrate 16; and an air outlet 28 at the mouth end 14.
  • the primary air inlet 24 is provided by an open end of the wrapper 22.
  • the secondary air inlets 26 are provided as first and second rows 30, 32 of circumferentially spaced secondary air inlets 26, with the second row 32 being positioned downstream of the first row 30.
  • the secondary air inlets 26 extend through the paper wrapper 22 and through a wall 19 of the hollow paper tube 18a.
  • the air outlet 28 is provided by a downstream end of the filter 20.
  • the aerosol generating article 10 may also include ventilation holes 34.
  • the ventilation holes 34 are positioned between the secondary air inlets 26 and the air outlet 28, and can be provided in the wall 19 of the hollow paper tube 18a as shown and/or in the filter 20.
  • the ventilation holes 34 can comprise a multitude of circumferentially spaced perforations which have an open surface area that is lower than an open surface area of the secondary air inlets 26.
  • the secondary air inlets 26 are blocked when the aerosol generating article 10 is positioned in an aerosol generating device 40, 60 to substantially prevent airflow from the secondary air inlets 26 to the air outlet 28.
  • air is drawn into the article 10 through the primary air inlet 24, and hence through the aerosol generating substrate 16. This facilitates vapour generation when the aerosol generating substrate 16 is heated during use of the aerosol generating article 10 in an aerosol generating device 40, 60.
  • the aerosol generating system 1 comprises a first example of an electrically-operated aerosol generating device 40 and an aerosol generating article 10 as described above.
  • the aerosol generating device 40 has a proximal end 42 and a distal end 44 and comprises a device body 46 which includes a power source 48 and a controller 50.
  • the power source 48 typically comprises one or more batteries which could, for example, be inductively rechargeable.
  • the aerosol generating device 40 comprises a substantially cylindrical heating chamber 52 having air inlets 52a.
  • the heating chamber 52 is positioned at the proximal end 42 of the aerosol generating device 40 and is arranged to receive the substantially cylindrical aerosol generating article 10 via an opening 56.
  • the aerosol generating device 40 includes a plurality of air inlets 54 formed in the device body 46 which deliver air to the heating chamber 52 via the air inlets 52a.
  • the aerosol generating article 10 is positioned in the heating chamber 52 by inserting the distal end 12 into the heating chamber 52 via the opening 56.
  • the heating chamber 52 and aerosol generating article 10 are dimensioned so that the mouth end 14, and in particular the filter 20, projects from the heating chamber 52 at the proximal end 42 of the aerosol generating device 40.
  • the wrapper 22 of the aerosol generating article 10 cooperates with an inner surface 53a of a cavity 53 defined by the heating chamber 52 thereby substantially blocking the secondary air inlets 26 and preventing air flow from the secondary air inlets 26 to the air outlet 28.
  • the inner surface 53a of the cavity 53 may further comprise dedicated blocking means, such as one or more sealing rings, positioned about the secondary air inlets 26 to ensure a hermetic closure of the secondary air inlets 26.
  • the blocking means may be resilient to slightly retract (e.g., be pushed) when the aerosol generating article 10 is inserted in the cavity 53.
  • the aerosol generating device 40 comprises a resistive heating element 58 mounted on the device body 46 so that it projects into the heating chamber 52.
  • the heating element 58 is inserted into the aerosol generating substrate 16 during insertion of an aerosol generating article 10 into the heating chamber 52 by a user.
  • the heating element 58 could be a blade or an elongate pin which penetrates the aerosol generating substrate 16 as the aerosol generating article 10 is inserted into the heating chamber 52 via the opening 56.
  • the aerosol generating device 40 During operation of the aerosol generating device 40, electrical energy is supplied by the power source 48 to the resistive heating element 58 and the resistive heating element 58 is thereby heated. The heat is transferred from the resistive heating element 58 to the aerosol generating substrate 16, causing it to heat up without burning and thereby produce a vapour.
  • air When a user draws on the mouth end 14 of the aerosol generating article 10, air is drawn into the heating chamber 52 through the air inlets 54, 52a. The air flows through the primary air inlet 24 of the aerosol generating article 10 and through the aerosol generating substrate 16 and, hence, vapour generated by heating the aerosol generating substrate 16 is entrained in the airstream and conveyed towards the air outlet 28 at the mouth end 14 of the aerosol generating article 10.
  • the vapour cools and condenses as it flows through the vapour cooling element 18 to form an aerosol.
  • the aerosol then passes through the filter 20 and is inhaled by a user.
  • FIG. 3 there is shown diagrammatically a second example of an aerosol generating system 2.
  • the aerosol generating system 2 is similar to the aerosol generating system 1 described above with reference to Figure 2 , and corresponding components are identified using the same reference numerals.
  • the aerosol generating system 2 comprises a second example of an electrically-operated aerosol generating device 60 and an aerosol generating article 10 as described above.
  • the aerosol generating device 60 comprises a magnetic field generator 62 for generating an electromagnetic field.
  • the magnetic field generator 62 comprises a substantially helical induction coil 64.
  • the induction coil 64 has a circular cross-section and extends around the substantially cylindrical heating chamber 52.
  • the induction coil 64 can be energised by the power source 48 and controller 50.
  • the controller 50 includes, amongst other electronic components, an inverter which is arranged to convert a direct current from the power source 48 into an alternating high-frequency current for the induction coil 64.
  • the aerosol generating system 2 further includes an inductively heatable susceptor (not shown) located proximate, or in contact with, the aerosol generating substrate 16.
  • the inductively heatable susceptor may, for example, comprise a blade-shaped or pin-shaped or ring-shaped susceptor mounted on the device body 46 in the same way as the resistive heating element 58 illustrated in Figure 2 .
  • the inductively heatable susceptor may alternatively comprise a susceptor element which is positioned in, or particulate susceptor material which is dispersed throughout, the aerosol generating substrate 16 during manufacture and assembly of the aerosol generating article 10.
  • the induction coil 64 when the induction coil 64 is energised during use of the aerosol generating system 2, an alternating and time-varying electromagnetic field is produced. This couples with the inductively heatable susceptor and generates eddy currents and/or magnetic hysteresis losses in the susceptor causing it to heat up. The heat is then transferred from the inductively heatable susceptor to the aerosol generating substrate 16, for example by conduction, radiation and convection, to heat the aerosol generating substrate 16 without burning and thereby produce a vapour.
  • Airflow through the aerosol generating device 60, and hence through the aerosol generating article 10, is the same as that described above in connection with the aerosol generating system 1 of Figure 2 .
  • the secondary air inlets 26 are once again blocked when the aerosol generating article 10 is positioned in the heating chamber 52 of the aerosol generating device 60 causing air to flow from the air inlets 54, 52a and through the primary air inlet 24 of the aerosol generating article 10.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP20185837.0A 2020-07-14 2020-07-14 Article de génération d'aérosol et système de génération d'aérosol Withdrawn EP3939443A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20185837.0A EP3939443A1 (fr) 2020-07-14 2020-07-14 Article de génération d'aérosol et système de génération d'aérosol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20185837.0A EP3939443A1 (fr) 2020-07-14 2020-07-14 Article de génération d'aérosol et système de génération d'aérosol

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EP3939443A1 true EP3939443A1 (fr) 2022-01-19

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2394520A1 (fr) * 2009-02-07 2011-12-14 Kazuhiko Shimizu Gabarit de fumage sans combustion
WO2017198837A1 (fr) * 2016-05-20 2017-11-23 British American Tobacco (Investments) Limited Article destiné à être utilisé dans un appareil permettant de chauffer un matériau à fumer
CN206744572U (zh) * 2017-04-07 2017-12-15 湖南中烟工业有限责任公司 一种烟弹及其电子烟
WO2020089091A1 (fr) * 2018-10-29 2020-05-07 Nerudia Limited Consommable de substitution à l'acte de fumer
EP3662771A1 (fr) * 2013-12-05 2020-06-10 Philip Morris Products S.a.s. Article de génération d'aérosol avec un trajet d'écoulement d'air à faible résistance
WO2020128043A1 (fr) * 2018-12-20 2020-06-25 Philip Morris Products S.A. Article de génération d'aérosol doté d'ue cavité ventilée
US20200205467A1 (en) * 2017-05-26 2020-07-02 Hubei China Tobacco Industry Co., Ltd. Smokeless cigarette having decreased vapor temperature and preventing heat-caused collapse of cigarette holder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2394520A1 (fr) * 2009-02-07 2011-12-14 Kazuhiko Shimizu Gabarit de fumage sans combustion
EP3662771A1 (fr) * 2013-12-05 2020-06-10 Philip Morris Products S.a.s. Article de génération d'aérosol avec un trajet d'écoulement d'air à faible résistance
WO2017198837A1 (fr) * 2016-05-20 2017-11-23 British American Tobacco (Investments) Limited Article destiné à être utilisé dans un appareil permettant de chauffer un matériau à fumer
CN206744572U (zh) * 2017-04-07 2017-12-15 湖南中烟工业有限责任公司 一种烟弹及其电子烟
US20200205467A1 (en) * 2017-05-26 2020-07-02 Hubei China Tobacco Industry Co., Ltd. Smokeless cigarette having decreased vapor temperature and preventing heat-caused collapse of cigarette holder
WO2020089091A1 (fr) * 2018-10-29 2020-05-07 Nerudia Limited Consommable de substitution à l'acte de fumer
WO2020128043A1 (fr) * 2018-12-20 2020-06-25 Philip Morris Products S.A. Article de génération d'aérosol doté d'ue cavité ventilée

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