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DE19732335A1 - Electrostatic air filter for removal of microorganisms - Google Patents

Electrostatic air filter for removal of microorganisms

Info

Publication number
DE19732335A1
DE19732335A1 DE19732335A DE19732335A DE19732335A1 DE 19732335 A1 DE19732335 A1 DE 19732335A1 DE 19732335 A DE19732335 A DE 19732335A DE 19732335 A DE19732335 A DE 19732335A DE 19732335 A1 DE19732335 A1 DE 19732335A1
Authority
DE
Germany
Prior art keywords
layers
layer
electrode
fibers
impregnated
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Withdrawn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
DE19732335A
Other languages
German (de)
Inventor
Heinz Prof Hoelter
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19732335A priority Critical patent/DE19732335A1/en
Priority to DE59812617T priority patent/DE59812617D1/en
Priority to BR9811268-6A priority patent/BR9811268A/en
Priority to AT98936146T priority patent/ATE289857T1/en
Priority to US09/424,969 priority patent/US6375721B1/en
Priority to PT98936146T priority patent/PT989901E/en
Priority to JP50132899A priority patent/JP2002510240A/en
Priority to ES98936146T priority patent/ES2239397T3/en
Priority to PCT/DE1998/001599 priority patent/WO1998056489A1/en
Priority to EP98936146A priority patent/EP0989901B1/en
Priority to CA002286856A priority patent/CA2286856A1/en
Priority to PL98337280A priority patent/PL190125B1/en
Priority to CNB988060906A priority patent/CN1182909C/en
Priority to DK98936146T priority patent/DK0989901T3/en
Priority to AU85308/98A priority patent/AU739503B2/en
Publication of DE19732335A1 publication Critical patent/DE19732335A1/en
Withdrawn legal-status Critical Current

Links

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
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/013—Conditioning by chemical additives, e.g. with SO3
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • B01D53/323—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
    • 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
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
    • B03C3/155—Filtration
    • 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
    • B03C3/41—Ionising-electrodes
    • 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
    • B03C3/53—Liquid, or liquid-film, electrodes
    • 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
    • B03C3/60—Use of special materials other than liquids
    • 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
    • B03C3/88—Cleaning-out collected particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Electrostatic Separation (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Laminated Bodies (AREA)
  • Treating Waste Gases (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The filter is used for the purification of environmental air, and particles are collected on denatured layer. A denatured layer is defined as one that not only contains no nutrients for microorganisms, but is treated with additives to destroy them. The denatured layers are applied to the collector electrode, here the inside of a tube along whose axis the discharge electrode, as wire with virtually radial spikes, is charged > 7000 kV. A tube is chosen as the simplest shape for integration in an air duct. Three layers, strongly acidic, strongly alkaline, placed on either side of a neutral layer, form collector. The layers are made electrically conducting by the addition of graphite or activated charcoal. Also, layers are impregnated with monoclonal antibodies or substances to counteract endotoxin or to kill fungi. Layer is best composed of individual cells, like a chessboard, with different properties in adjacent cells, so good kill rate is achieved as microorganisms pass across, and through, layers. To keep layers moist, material is impregnated with hygroscopic substance and fine aerosol is dispersed into airstream during operation. Collectors are run in series.

Description

Es ist bekannt, daß Filter nach dem Prinzip des Elektrofilters, d. h. mit Sprüh- und Niederschlagselektroden so arbeiten, daß die in der Luft enthaltenen Schadstoffe aus dem freien Querschnitt heraus an der Niederschlagselektrode abgeschieden werden.It is known that filters based on the principle of the electrostatic filter, i. H. with spray and Precipitation electrodes work so that the pollutants contained in the air deposited on the precipitation electrode from the free cross-section become.

Darüber hinaus ist bekannt, durch die Hauptanmeldung 197 25 030.0, daß die Niederschlagselektroden in Form von Gespinsten, Geweben, Filzen und dergleichen als Tiefenfilter ausgestaltet werden, und daß diese Tiefenfilter mit sauren und/oder alkalischen Lösungen getränkt werden können. Hierdurch wird gewährleistet, daß die mit der Ionenwanderung von der Sprühelektrode zur Niederschlagselektrode, dieser Niederschlagselektrode zugeführten Schadstoffe und Mikroorganismen in der Niederschlagselektrode festgehalten und, soweit es sich um biologische Substanzen handelt, auch denaturiert werden.In addition, it is known from the main application 197 25 030.0 that the Precipitation electrodes in the form of webs, fabrics, felts and the like be designed as a depth filter, and that these depth filters with acid and / or alkaline solutions can be soaked. This ensures that with the migration of ions from the spray electrode to the precipitation electrode, this precipitation electrode supplied pollutants and microorganisms in the Precipitation electrode recorded and, as far as biological substances acts, also be denatured.

Es wurde nun gefunden, daß eine weitere Ausstattung der Niederschlagselektrode mit monoklonalen Antikörpern dazu führt, daß insbesondere Allergene in einem noch weit höheren Maße abgeschieden und denaturiert werden, als dies bei einer lediglich sauren oder alkalischen Ausstattung gegeben ist. It has now been found that further equipment of the precipitation electrode with monoclonal antibodies leads to allergens in particular in one are deposited and denatured far more than one only acidic or alkaline equipment is given.  

Selbstverständlich ist die Erfindung nicht auf die vorstehend im einzelnen beschriebenen und ausgeführten Ausbildungsformen beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, daß Filterschichten auf der Niederschlagselektrode, die durchströmt werden, neben sauren und alkalischen Tränkungen auch Tränkungen oder Imprägnierungen mit monoklonalen Antikörpern besitzen können.Of course, the invention is not limited to the above in detail described and executed forms of training limited, but there are numerous changes possible, but without the basic idea that filter layers on the precipitation electrode that flows through besides acidic and alkaline impregnations also impregnations or May have impregnations with monoclonal antibodies.

Claims (2)

1. Verfahren zur Abscheidung von vorzugsweise in der Raumluft vorhandenen Schadstoffen nach Patentanmeldung P 197 25 030.0 dadurch gekennzeichnet, daß die Niederschlagselektrode mit Fasern und/oder Feststoff-Filterschichten versehen ist, die mit einer Pufferlösung getränkt ist, wobei diese Pufferlösung neben einer starken alkalischen und/oder sauren Tränkung mit einer Tränkung mit poly- und monoklonalen Antikörpern versehen ist, die an den Fasern und/oder an der Feststoff-Filterschicht fest eingebunden wird.1. A method for separating pollutants preferably present in the ambient air according to patent application P 197 25 030.0, characterized in that the precipitation electrode is provided with fibers and / or solid filter layers which is impregnated with a buffer solution, this buffer solution in addition to a strong alkaline and / or acidic impregnation is provided with an impregnation with poly- and monoclonal antibodies, which is firmly integrated on the fibers and / or on the solid filter layer. 2. Verfahren zur Abscheidung von Luftverunreinigungen vorzugsweise für Klimaanlagen, dadurch gekennzeichnet, daß die Niederschlagselektrode und/oder Sprühelektrode mit Feststoff-Filterschichten poröser, leitfähiger Art und/oder Körpern, die aus Fasern bestehen, die mit Pufferlösungen getränkt werden, die saurer und/oder alkalisch bzw. vorzugsweise auf der Sprühelektrodenseite die getränkte Schicht stark alkalisch ausgebildet ist und die auf der Niederschlags­ elektrode angebrachte Pufferschicht für Pufferlösungen stark alkalisch ausgebildet ist und/oder noch zusätzlich mit einer tränkbaren Feststoffschicht, die z. B. aus Fasern besteht, die mit poly- und/oder monoklonalen Antikörpern vorzugsweise durch Tränkung fest eingebunden ist, eine größtmögliche Abscheidung von Luftverunreinigungen bei gleichzeitiger Denaturierung durch die Elektrodenflächen, die denaturierend mit den erfindungsgemäßen Merkmalen ausgebildet sind, erzielt werden kann.2. Process for the separation of air pollution preferably for Air conditioning systems, characterized in that the precipitation electrode and / or Spray electrode with solid filter layers of porous, conductive type and / or Bodies that consist of fibers that are soaked with buffer solutions that acidic and / or alkaline or preferably on the spray electrode side impregnated layer is strongly alkaline and that on the precipitation electrode attached buffer layer for buffer solutions made strongly alkaline is and / or additionally with an impregnable solid layer, the z. B. from Fibers that are preferred with poly- and / or monoclonal antibodies is firmly integrated by impregnation, the greatest possible separation of Air pollution with simultaneous denaturation by the electrode surfaces, which are denaturing with the features of the invention achieved can be.
DE19732335A 1997-06-13 1997-07-28 Electrostatic air filter for removal of microorganisms Withdrawn DE19732335A1 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
DE19732335A DE19732335A1 (en) 1997-06-13 1997-07-28 Electrostatic air filter for removal of microorganisms
DE59812617T DE59812617D1 (en) 1997-06-13 1998-06-12 IONIZATION FILTER FOR CLEANING AIR
BR9811268-6A BR9811268A (en) 1997-06-13 1998-06-12 Ionization filter for air purification
AT98936146T ATE289857T1 (en) 1997-06-13 1998-06-12 IONIZATION FILTER FOR PURIFYING AIR
US09/424,969 US6375721B1 (en) 1997-06-13 1998-06-12 Ionization filter for purifying air
PT98936146T PT989901E (en) 1997-06-13 1998-06-12 IONIZATION FILTER FOR AIR PURIFICATION
JP50132899A JP2002510240A (en) 1997-06-13 1998-06-12 Ionizing filter for cleaning air
ES98936146T ES2239397T3 (en) 1997-06-13 1998-06-12 IONIZATION FILTER FOR AIR CLEANING.
PCT/DE1998/001599 WO1998056489A1 (en) 1997-06-13 1998-06-12 Ionisation filter for purifying air
EP98936146A EP0989901B1 (en) 1997-06-13 1998-06-12 Ionisation filter for purifying air
CA002286856A CA2286856A1 (en) 1997-06-13 1998-06-12 Ionization filter for purifying air
PL98337280A PL190125B1 (en) 1997-06-13 1998-06-12 Ionisation-type filter for purification of air
CNB988060906A CN1182909C (en) 1997-06-13 1998-06-12 Ionization filter for air purification
DK98936146T DK0989901T3 (en) 1997-06-13 1998-06-12 Ionization filter for air purification
AU85308/98A AU739503B2 (en) 1997-06-13 1998-06-12 Ionisation filter for purifying air

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19725030A DE19725030C2 (en) 1997-06-13 1997-06-13 Ionization filter with denaturing precipitation electrode
DE19732335A DE19732335A1 (en) 1997-06-13 1997-07-28 Electrostatic air filter for removal of microorganisms

Publications (1)

Publication Number Publication Date
DE19732335A1 true DE19732335A1 (en) 1999-03-04

Family

ID=7832391

Family Applications (13)

Application Number Title Priority Date Filing Date
DE19725030A Expired - Fee Related DE19725030C2 (en) 1997-06-13 1997-06-13 Ionization filter with denaturing precipitation electrode
DE19730040A Withdrawn DE19730040A1 (en) 1997-06-13 1997-07-14 Electrostatic air filter for removal of microorganisms
DE19732335A Withdrawn DE19732335A1 (en) 1997-06-13 1997-07-28 Electrostatic air filter for removal of microorganisms
DE19735192A Withdrawn DE19735192A1 (en) 1997-06-13 1997-08-14 Electrostatic air filter for removal of microorganisms
DE19744594A Ceased DE19744594A1 (en) 1997-06-13 1997-10-09 Improving the performance of electrofilters with denaturing deposition electrodes for air purification
DE19756999A Withdrawn DE19756999A1 (en) 1997-06-13 1997-12-20 Electrostatic air filter for removal of microorganisms
DE19809068A Expired - Fee Related DE19809068C2 (en) 1997-06-13 1998-03-04 Ionization filter with denaturing precipitation electrode
DE19810449A Ceased DE19810449A1 (en) 1997-06-13 1998-03-11 Ionization device for improving room air quality
DE19819939A Withdrawn DE19819939A1 (en) 1997-06-13 1998-05-05 Electrostatic air filter for removal of microorganisms
DE19821184A Ceased DE19821184A1 (en) 1997-06-13 1998-05-12 Electrostatic air filter for removal of microorganisms
DE19822054A Ceased DE19822054A1 (en) 1997-06-13 1998-05-16 Denaturing electrofilter unit, e.g. for treating air
DE19822055A Ceased DE19822055A1 (en) 1997-06-13 1998-05-16 Ionization filter, e.g. for denaturing microorganisms
DE19825241A Withdrawn DE19825241A1 (en) 1997-06-13 1998-06-05 Electric filter ioniser, e.g. for air cleansing systems

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DE19725030A Expired - Fee Related DE19725030C2 (en) 1997-06-13 1997-06-13 Ionization filter with denaturing precipitation electrode
DE19730040A Withdrawn DE19730040A1 (en) 1997-06-13 1997-07-14 Electrostatic air filter for removal of microorganisms

Family Applications After (10)

Application Number Title Priority Date Filing Date
DE19735192A Withdrawn DE19735192A1 (en) 1997-06-13 1997-08-14 Electrostatic air filter for removal of microorganisms
DE19744594A Ceased DE19744594A1 (en) 1997-06-13 1997-10-09 Improving the performance of electrofilters with denaturing deposition electrodes for air purification
DE19756999A Withdrawn DE19756999A1 (en) 1997-06-13 1997-12-20 Electrostatic air filter for removal of microorganisms
DE19809068A Expired - Fee Related DE19809068C2 (en) 1997-06-13 1998-03-04 Ionization filter with denaturing precipitation electrode
DE19810449A Ceased DE19810449A1 (en) 1997-06-13 1998-03-11 Ionization device for improving room air quality
DE19819939A Withdrawn DE19819939A1 (en) 1997-06-13 1998-05-05 Electrostatic air filter for removal of microorganisms
DE19821184A Ceased DE19821184A1 (en) 1997-06-13 1998-05-12 Electrostatic air filter for removal of microorganisms
DE19822054A Ceased DE19822054A1 (en) 1997-06-13 1998-05-16 Denaturing electrofilter unit, e.g. for treating air
DE19822055A Ceased DE19822055A1 (en) 1997-06-13 1998-05-16 Ionization filter, e.g. for denaturing microorganisms
DE19825241A Withdrawn DE19825241A1 (en) 1997-06-13 1998-06-05 Electric filter ioniser, e.g. for air cleansing systems

Country Status (2)

Country Link
KR (1) KR20010012181A (en)
DE (13) DE19725030C2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904607C1 (en) * 1999-02-05 2000-04-06 Heinz Hoelter Electrostatic filter comprises cascade of ionizing electrodes and earthing plates
DE19904606C1 (en) * 1999-02-05 2000-07-20 Heinz Hoelter Denaturizing precipitation electrode used in air purification system, has face divided into adjacent pyramids by inclined surface grooves
DE19915221C1 (en) * 1999-04-03 2000-10-12 Heinz Hoelter Air cleaning device using ion wind conditioning wall uses spray electrodes for providing ion wind at air intake and electrodes with high pH value within vertical flow conduit for air
AU2001219955A1 (en) * 2000-08-09 2002-02-18 Heinz Holter Dust filter for purifying air
US7033668B2 (en) 2001-08-23 2006-04-25 Tesa Ag Electrically conductive, preferably unbacked adhesive tape with permanent full-area pressure sensitive adhesion, composed of a film of a pressure sensitive adhesive which is preferably coated onto an antiadhesive medium and has an alkaline surface
DE10346826B4 (en) * 2003-10-06 2013-09-26 Behr Gmbh & Co. Kg Filter system for motor vehicles
WO2006072235A1 (en) * 2005-01-07 2006-07-13 Efs Schermbeck Gmbh Method and device for the purification and conditioning of air
DE102008056072B4 (en) * 2008-11-05 2016-09-29 Paragon Ag Apparatus and method for charging indoors with fragrances, odors and / or flavorings
BR112023005392A2 (en) * 2020-09-23 2023-04-25 Hibocare Tech South Africa Pty Ltd PANEL FOR AN AIR CIRCULATION SYSTEM

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2854716A1 (en) * 1978-12-18 1980-06-19 Philips Patentverwaltung Electrostatic appts. for agitating or treating air - has cascade of anodes and cathodes at field strength below ozone generation threshold
DE2920813A1 (en) * 1979-05-23 1980-12-04 Rolf Fichtlscherer ELECTRONIC AIR PURIFIER AND IONIZER
DE19523048C1 (en) * 1995-06-24 1996-12-05 Hoelter Heinz Removal of allergenic substances e.g. spores, pollen etc.

Also Published As

Publication number Publication date
DE19822054A1 (en) 1999-11-18
DE19825241A1 (en) 1999-12-09
DE19744594A1 (en) 1999-04-15
DE19725030C2 (en) 2000-04-27
KR20010012181A (en) 2001-02-15
DE19821184A1 (en) 1999-11-18
DE19809068A1 (en) 1999-09-09
DE19730040A1 (en) 1999-03-04
DE19756999A1 (en) 1999-06-24
DE19725030A1 (en) 1998-12-17
DE19809068C2 (en) 2000-08-31
DE19810449A1 (en) 1999-09-16
DE19822055A1 (en) 1999-11-18
DE19819939A1 (en) 1999-11-11
DE19735192A1 (en) 1999-03-04

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