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EP2108456A1 - Extraktionsvorrichtung von Partikeln aus verbrauchter Atemluft - Google Patents

Extraktionsvorrichtung von Partikeln aus verbrauchter Atemluft Download PDF

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Publication number
EP2108456A1
EP2108456A1 EP09005243A EP09005243A EP2108456A1 EP 2108456 A1 EP2108456 A1 EP 2108456A1 EP 09005243 A EP09005243 A EP 09005243A EP 09005243 A EP09005243 A EP 09005243A EP 2108456 A1 EP2108456 A1 EP 2108456A1
Authority
EP
European Patent Office
Prior art keywords
side wall
droplet collector
particles
droplets
droplet
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.)
Granted
Application number
EP09005243A
Other languages
English (en)
French (fr)
Other versions
EP2108456B1 (de
Inventor
Patrick Pouteau
Jean-Luc Achard
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.)
Centre National de la Recherche Scientifique CNRS
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Centre National de la Recherche Scientifique CNRS
Commissariat a lEnergie Atomique CEA
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 Centre National de la Recherche Scientifique CNRS, Commissariat a lEnergie Atomique CEA filed Critical Centre National de la Recherche Scientifique CNRS
Publication of EP2108456A1 publication Critical patent/EP2108456A1/de
Application granted granted Critical
Publication of EP2108456B1 publication Critical patent/EP2108456B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/455—Collecting-electrodes specially adapted for heat exchange with the gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/16—Plant or installations having external electricity supply wet type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/32—Transportable units, e.g. for cleaning room air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/49—Collecting-electrodes tubular

Definitions

  • the present invention relates to a device for extracting particles from exhaled breath, and more particularly to an electrostatic precipitator for the electrostatic collection of particles carried by exhaled breath.
  • An electrostatic precipitator is an apparatus designed to extract particles from a gas, such as air, using the electrostatic forces produced by an electric field through which these particles pass.
  • the electric field which is high (several tens of kV per cm) and non-uniform, is induced by two electrodes.
  • an electric discharge is created within a pocket of less than one millimeter of ionized gas surrounding one of the electrodes, typically in the form of a tip or wire, brought to a high potential negative or positive, a phenomenon called crown effect.
  • the gas pocket is spherical in the case of a point, and cylindrical in the case of a wire.
  • ionic wind a flow of ions, called ionic wind, sweeps the majority of the inter-electrode space. It covers the particles that are then charged. Sensitive to Coulomb forces, they are driven on the cylindrical or planar counter electrode, grounded.
  • some electrofilters previously mix the air containing the particles to be collected with water vapor introduced either in the form of droplets or in the form of dry vapor into a unit. upstream of the collection unit.
  • the first case is that of water spray cleaners in which the droplets collect the particles.
  • This type of electrofilter is commercially available, as for example from Wheelabrator Air Pollution Control Inc.
  • the capture of particles results from the fact that they move with the speed of the gas while the droplets have a relative speed with respect to the gas, which can be controlled by different mechanisms, such as for example gravity, inertia and turbulence
  • to the previous collection mechanisms is added that related to nucleation.
  • electrofilters described above are not suitable for use allowing an electrostatic collection of particles carried by breath expired in a portable microsystem.
  • the present invention aims to provide a device compatible with portable use and allowing the extraction of particles of expired breath while having a reduced energy consumption. More particularly, this invention aims to provide a device for the electrostatic collection of pathogens carried by breath expired for subsequent analysis.
  • a device for extracting particles from the exhaled breath comprising a cooling system for creating droplets by condensation of the water vapor contained in the exhaled breath, a droplet recuperator provided with a side wall having a meshed and convergent shape to a flow port, allowing the droplets attracted to said sidewall to flow therealong toward the flow port, and a discharge electrode mounted to the interior of the droplet collector, said sidewall of said droplet collector defining a counter electrode to said discharge electrode for attracting droplets collecting exhaled breath-borne particles to said sidewall.
  • the side wall of the droplet collector comprises a plurality of conductive strips.
  • the conductive lamellae converge towards the flow orifice and are preferably made of metal.
  • the conductive strips are spaced from each other in order to perform the roasting function.
  • the meshed shape allows the exhaled breath to leave the droplet recuperator without constraint.
  • the exhaled breath can freely exit said droplet recuperator without interfering with the process of collecting droplets capturing particles carried by the expired breath.
  • said droplet recuperator is made in the form of a cone having a tip comprising said flow orifice.
  • the conductive strips are carried by the generatrices of the cone defining the droplet collector.
  • the conductive lamellae are carried downstream by the tip of the cone and upstream by the base of the cone.
  • the cone shape advantageously allows the adaptation of the droplet collector for use in a portable system.
  • the discharge electrode can be made as a tip or a wire.
  • the inner side of the side wall of the droplet collector is preferably made hydrophilic by a surface treatment. This treatment may be a silicon oxide deposit.
  • the inner side of the sidewall of the droplet collector may also be grooved. Its outer side is preferably rendered hydrophobic by a surface treatment.
  • the cooling system preferably comprises a chamber having an inner wall, said inner wall being rendered hydrophobic by a surface treatment. Said droplet recuperator is connected downstream of this cooling system.
  • said droplet recuperator is connected to a fluidic microsystem for analyzing the particles, collected by means of the droplets that have flowed along the side wall of said recuperator droplets towards its flow orifice.
  • the particles collected are pathogens.
  • pathogens carried by exhaled breath can quickly and efficiently be collected and analyzed by a portable system.
  • the object of the present invention is also achieved by a system for analyzing particles extracted from exhaled breath, comprising a device for collecting expired breath particles and a fluidic microsystem for analyzing the collected particles.
  • the device for collecting expired breath particles includes a cooling system for creating droplets by condensing the water vapor contained in the exhaled breath; a droplet recuperator having a sidewall having a mesh shape and converging toward a flow port allowing the droplets attracted to said sidewall to flow therealong toward the flow port; and a discharge electrode mounted within the droplet recuperator, said side wall of said droplet collector defining a counter electrode to said discharge electrode for attracting droplets collecting exhaled breath-borne particles to said sidewall.
  • the fluidic microsystem for analyzing the collected particles is connected to said device for collecting the particles of exhaled breath at said flow orifice.
  • an electrostatic precipitator for the electrostatic collection of exhaled breath particles comprising a droplet recuperator provided with a side wall having a shape meshed and convergent to a flow port allowing droplets attracted to said sidewall to flow therealong toward the flow port; and a discharge electrode mounted within the droplet collector, said side wall of said droplet collector defining a counter electrode to said discharge electrode for attracting droplets collecting breath-exhaled particles to said sidewall.
  • the Fig. 1 illustrates by way of example a system 10 for the analysis of particles extracted from exhaled breath according to the present invention.
  • Exhaled breath is normally loaded with water vapor and may contain particles, including pathogens such as viruses, bacteria, cells, antibodies, antigens, nucleic acids or other, that one would like to analyze.
  • the system 10 comprises a device 30 for collecting expired breath particles and a fluidic microsystem for analyzing the collected particles 20.
  • the device 30 comprises a cooling system 16 and a droplet recuperator 7 defining an electrostatic precipitator. These are represented in the Fig. 1 by being transparent, for illustration.
  • the cooling system 16 comprises a chamber 18 having an inner wall 19 which is here, for the illustration, of cylindrical shape. According to a preferred embodiment, the cooling system 16 is positioned upstream of the droplet collector 7 and connected by a connection tight to it. The cooling system 16 is able to cool the water vapor contained in the exhaled breath to obtain droplets by the condensation of water vapor. For the illustration, the expired breath is conveyed to the chamber 18 by a tip 3.
  • the particular position and embodiment of the cooling system 16 are not limited to those illustrated in FIG. Fig. 1 , as long as it allows to cool the water vapor contained in the exhaled breath to obtain droplets by condensation.
  • the cooling system 16 and the droplet collector 7 can be combined so that the water vapor contained in the exhaled breath is only cooled from its arrival in the droplet collector 7.
  • the recuperator droplet 7 may be cooled itself, for example by contact and conduction with the cooling system 16.
  • different embodiments are possible and generally contemplated.
  • the droplet collector 7 has a side wall 2 which preferably defines a convergent shape towards a flow orifice 9 provided at its lower tip 8.
  • the side wall 2 has an inner side 4 and an outer side 5.
  • the droplet collector 7 is advantageously of meshed form.
  • a discharge electrode 1 which is capable of creating a flow of ions from a pocket of ionized gas surrounding the discharge electrode 1.
  • the side wall 2 defines a counter electrode to the discharge electrode 1.
  • droplets capable of collecting particles carried by the breath are expired are carried by the flow of ions from the location of the discharge electrode 1 to the side wall 2 of the droplet collector 7.
  • these droplets capture particles to collect and take them to the side wall 2 or the droplets with the captured particles form a liquid film 6 flowing along the side wall 2 to and through the flow port 9 in the microsystem 20.
  • the flow orifice 9 is adapted to a respective inlet of the microsystem 20. This is connected to the device 30, for example by gluing, to recover the collected particles.
  • the microsystem 20 comprises a silicon substrate 21 having fluidic chambers and channels, such as the chambers 22, 23 and the channel 24. These can be generated by conventional silicon photolithography and etching techniques on or in the upper face of the substrate 21. According to the need or the analysis protocol of a respective sample to be collected via the device 30, the fluidic chambers 22, 23 and the channel 24 can be provided with a depth of the order of 10 to 500 ⁇ m.
  • the fluidic part of the microsystem 20 is sealed by assembling above the substrate 21 a silica wafer 40 pierced with holes serving as input-output of the microsystem 20.
  • the silica wafer 40 may alternatively be made of glass, plastic or any other material making the microsystem 20 waterproof.
  • the assembly of the wafer 40 and the substrate 21 can be made irreversible by a deposit of adhesive on the substrate 21 around the fluidic parts of the component, that is to say around the chambers 22, 23 and the channel 24. This glue deposit is made for example by screen printing of glue. A suitable process is described in the patent FR 2,856,047 .
  • microsystems 20 can be assembled on a single wafer as described above.
  • This wafer can be cut into individual components by cutting with a saw adapted.
  • the Fig. 2 shows the device 30 for collecting particles from the exhaled breath of the Fig. 1 in enlarged sectional view.
  • the chamber 18 of the cooling system 16 is made hermetic with respect to the nozzle 3 by means of a seal 17 and the discharge electrode 1 is a tip 15.
  • the discharge electrode 1 can be made as a wire, especially a polarized wire.
  • a wire will generate a larger discharge area than tip 15, since the corresponding discharge zone would be around the entire length of the wire, thus allowing collection of the expired breath particles.
  • a discharge voltage of 10 KV could be applied to a wire having a diameter of 50 ⁇ m in order to create a suitable discharge zone. This voltage can be increased for a wire having a larger diameter. It can be decreased for a wire having a smaller diameter, for example a wire having a diameter of 10 microns.
  • the wire is made of a mechanically resistant conductive material, such as for example tungsten.
  • the material used is also weldable, such as copper.
  • Such a wire will preferably be positioned parallel to the axis of the droplet collector 7, preferably parallel to its central axis, and fixed by support means in its position, said support means being for example pressed against the side 4 inside the side wall 2 and joining the ends of the wire to it without hindering the flow of collected droplets.
  • the droplet collector 7 of the device 30 is of meshed form.
  • Its side wall 2 comprises, for example, a plurality of conductive strips 34 converging towards the flow orifice 9. These are preferably interconnected by struts 37, and spaced apart from gaps 35.
  • the conductive strips 34 define a counter-electrode to the discharge electrode 1 and are preferably made of metal.
  • the interstices 35 are oversized to clarify their realization. Nevertheless, it is necessary to make the interstices 35 so that the droplets carried to the side wall 2 can flow to the flow orifice 9 along the side wall 2 without constraint and that the exhaled breath, that is to say any non-condensable gas, can exit the recuperator of droplets 7 without constraint.
  • the Fig. 3 shows the droplet collector 7 of the Fig. 1 in enlarged perspective view. This clarifies the meshed form of the recuperator 7 with the conductive lamellae 34, the interstices 35 and the struts 37. Only a portion of the conductive lamellae 34 and interstices 35 have been designated by identification references for the sake of clarity of the invention. representation.
  • the droplet collector 7 is preferably conically shaped with a base 32 and the tip 8 having the flow orifice 9.
  • the conical shape of the recuperator 7 is defined by the generatrices of the cone carrying the conductive strips 34.
  • the conductive strips 34 represent generatrices of the cone and are then carried downstream by the tip 8 of the cone and upstream by its base 32, that is to say by the downstream portion of the cooling system 16 of the Fig. 2 .
  • the above-mentioned embodiment of the droplet collector 7, and in particular its conical shape, has the advantage of constituting on its inner side 4 a surface, which is not arranged parallel to the expired breath and therefore to the trajectory of the particles. conveyed by it.
  • This surface and the meshed form of the droplet collector 7 then promote the passage of particles in the vicinity of at least one of the conductive strips 34, thereby increasing the collection efficiency of the droplet collector 7, unlike a structure disposed parallel to the trajectory of the particles carried by the expired breath.
  • conductive lamellae 34 may be made in a circular, spiral, chevron or other shape as long as the functionality described in the context of the present invention is ensured. Thus, all these different modes of execution are contemplated.
  • the droplet collector 7 illustrated in FIG. Fig. 3 comprises a plurality of struts 37 as an example. Nevertheless, according to a preferred embodiment the conductive strips 34 are held only by a first strut provided near the base 32 and a second strut provided near the tip 8 of the droplet collector 7, preferably starting from the lower end. of the last. In other words, the number and the location of the struts 37, which serve essentially to maintain the structure of the cone chosen to produce the recuperator 7, can be modified without changing the functionality of the droplet collector 7.
  • a suitable size cone of stamped aluminum alloy can be used.
  • lateral discharge slots defining the interstices 35 as well as the flow orifice 9 at the tip 8 of the cone are made by laser cutting.
  • the Fig. 4 illustrates the principle of operation of the device 30 of the Fig.1 according to the present invention.
  • the expired breath 60 is conveyed to the cooling system 16 by the nozzle 3.
  • the expired breath 60 is charged with steam and contains particles to collect 66.
  • the exhaled breath 60 is cooled to obtain condensation water vapor droplets.
  • These droplets are carried to the side wall 2 of the droplet collector 7 by a flow of ions generated from an ionized gas bag 50 surrounding the tip 15 of the discharge electrode 1.
  • the droplets obtained capture particles 66 and take them to the side wall 2.
  • the droplets form a liquid film 6 flowing along the side wall 2 to the flow orifice 9.
  • the operation of an electrostatic precipitator as defined by the device 30 is generally known. by those skilled in the art, a more detailed description is omitted here.
  • the inner side 4 of the side wall 2 of the droplet collector 7 can be rendered hydrophilic by a surface treatment, for example by a silicon oxide (SiO 2 ) deposit.
  • the inner side 4 can also be structured by grooving oriented in the direction of flow of the droplets, the grooving helping to channel the flow.
  • its outer side 5 can be rendered hydrophobic by a surface treatment.
  • the inner wall 19 of its chamber 18 can also be rendered hydrophobic by a surface treatment.

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  • Sampling And Sample Adjustment (AREA)
  • Electrostatic Separation (AREA)
EP09005243.2A 2008-04-11 2009-04-09 Extraktionsvorrichtung von Partikeln aus verbrauchter Atemluft Active EP2108456B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0802013A FR2929860B1 (fr) 2008-04-11 2008-04-11 Dispositif d'extraction de particules de l'haleine expiree

Publications (2)

Publication Number Publication Date
EP2108456A1 true EP2108456A1 (de) 2009-10-14
EP2108456B1 EP2108456B1 (de) 2013-08-14

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Family Applications (1)

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EP09005243.2A Active EP2108456B1 (de) 2008-04-11 2009-04-09 Extraktionsvorrichtung von Partikeln aus verbrauchter Atemluft

Country Status (4)

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US (1) US8316852B2 (de)
EP (1) EP2108456B1 (de)
JP (1) JP4875722B2 (de)
FR (1) FR2929860B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962137A (zh) * 2011-08-29 2013-03-13 法国原子能及替代能源委员会 气体环境中悬浮的微粒的静电收集装置及其使用
US9617582B2 (en) 2012-09-04 2017-04-11 University Of Maryland College Park Human exhaled aerosol droplet biomarker system and method
US10502665B2 (en) 2016-04-18 2019-12-10 University Of Maryland, College Park Aerosol collection system and method

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FR2966839B1 (fr) * 2010-10-27 2012-11-30 Bertin Technologies Sa Dispositif portable de collecte de particules et de microorganismes
US9618431B2 (en) 2010-11-30 2017-04-11 Inspirotec, Inc. Electrokinetic device for capturing assayable agents in a dielectric fluid
JP5966158B1 (ja) * 2015-02-13 2016-08-10 パナソニックＩｐマネジメント株式会社 静電噴霧装置およびそれを用いて試料ガスから液体サンプルを得る方法
DE102020128664A1 (de) 2020-10-30 2022-05-05 Protektorwerk Florenz Maisch Gesellschaft mit beschränkter Haftung & Co. KG Aerosolsammler zur sammlung von pathogenen aus der luft, verwendung desselben, system und verfahren zur sammlung von pathogenen aus der luft
FR3117898A1 (fr) * 2020-12-21 2022-06-24 Commissariat à l'Energie Atomique et aux Energies Alternatives Unité de collecte de particules aéroportées
FR3130649A1 (fr) 2021-12-17 2023-06-23 Commissariat A L'energie Atomique Et Aux Energies Alternatives Membrane de collecte de particules aéroportées
US20240175791A1 (en) * 2022-11-30 2024-05-30 Breath Of Health Ltd. Method and system for detecting non-volatile and semi-volatile organic compounds in mid-ir spectrometry gas cell configurations

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US5364457A (en) * 1989-11-01 1994-11-15 Cecebe Technologies Inc. Electrostatic gas cleaning apparatus
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DE19755681A1 (de) * 1997-12-15 1999-06-24 Rudolf Weyergans Vorrichtung zur Luftionisation
FR2856047A1 (fr) 2003-06-16 2004-12-17 Commissariat Energie Atomique Procede de collage de substrats micro-structures
WO2006004490A1 (en) * 2004-07-05 2006-01-12 Svensk Rökgasenergi Intressenter Ab Gas purification
WO2007012447A1 (fr) * 2005-07-28 2007-02-01 Commissariat A L'energie Atomique (Cea) Dispositif d' extraction air/eau par collection electrostatique semi-humide et procede utilisant ce dispositif
WO2007131981A1 (en) * 2006-05-12 2007-11-22 BSH Bosch und Siemens Hausgeräte GmbH Air conditioning and cleaning apparatus

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Publication number Priority date Publication date Assignee Title
US4670026A (en) * 1986-02-18 1987-06-02 Desert Technology, Inc. Method and apparatus for electrostatic extraction of droplets from gaseous medium
US5364457A (en) * 1989-11-01 1994-11-15 Cecebe Technologies Inc. Electrostatic gas cleaning apparatus
DE4400420A1 (de) * 1994-01-10 1995-07-13 Maxs Ag Verfahren und Vorrichtung zum elektrostatischen Abscheiden von Verunreinigungen, wie Schwebstoffe oder dergleichen aus einem Gasstrom
DE19755681A1 (de) * 1997-12-15 1999-06-24 Rudolf Weyergans Vorrichtung zur Luftionisation
FR2856047A1 (fr) 2003-06-16 2004-12-17 Commissariat Energie Atomique Procede de collage de substrats micro-structures
WO2006004490A1 (en) * 2004-07-05 2006-01-12 Svensk Rökgasenergi Intressenter Ab Gas purification
WO2007012447A1 (fr) * 2005-07-28 2007-02-01 Commissariat A L'energie Atomique (Cea) Dispositif d' extraction air/eau par collection electrostatique semi-humide et procede utilisant ce dispositif
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102962137A (zh) * 2011-08-29 2013-03-13 法国原子能及替代能源委员会 气体环境中悬浮的微粒的静电收集装置及其使用
US9610587B2 (en) 2011-08-29 2017-04-04 Commissariat á l'ènergie atomique et aux ènergies alternatives Electrostatic collection device of particles in suspension in a gaseous environment
US9617582B2 (en) 2012-09-04 2017-04-11 University Of Maryland College Park Human exhaled aerosol droplet biomarker system and method
US10393753B2 (en) 2012-09-04 2019-08-27 University Of Maryland, College Park Human exhaled aerosol droplet biomarker system and method
US10502665B2 (en) 2016-04-18 2019-12-10 University Of Maryland, College Park Aerosol collection system and method

Also Published As

Publication number Publication date
US8316852B2 (en) 2012-11-27
JP2009258105A (ja) 2009-11-05
FR2929860A1 (fr) 2009-10-16
EP2108456B1 (de) 2013-08-14
FR2929860B1 (fr) 2010-12-17
US20100000540A1 (en) 2010-01-07
JP4875722B2 (ja) 2012-02-15

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