US3582711A - Arrangement for producing unipolar air ions - Google Patents

Arrangement for producing unipolar air ions Download PDF

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Publication number
US3582711A
US3582711A US766126A US3582711DA US3582711A US 3582711 A US3582711 A US 3582711A US 766126 A US766126 A US 766126A US 3582711D A US3582711D A US 3582711DA US 3582711 A US3582711 A US 3582711A
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Prior art keywords
air
arrangement
ions
duct
electrode
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US766126A
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English (en)
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Herbert Jahnke
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22—Ionisation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/44—Applying ionised fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/0071—Electrically conditioning the air, e.g. by ionizing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • ARRANGEMENT FOR PRODUCING UNIPOLAR ABSTRACT An arrangement by which unipolar air ions are realized.
  • a mass of moving air is directed through an air duct, through the action of a fan or similar air pump.
  • a needle electrode is mounted through the wall of the air duct and in the path of the moving air.
  • the needle electrode is electrically insulated from the walls of the duct and from ground potential.
  • a DC voltage supply applies a potential to the electrode and ground potential to the walls of the air duct.
  • the potential applied to the electrode is such that it is just equal to the ionization field strength or exceeds this quantity by only a slight amount.
  • ionization is realized so that ions of one polarity are attracted to the walls of the air duct and the ions of opposite polarity are directed through and out of the air duct.
  • Deflection electrodes at the exit of the air duct deflect the ions of desired polarity and regulate the ion density of the ion stream.
  • the present invention resides in an arrangement for producing unipolar air ions in an air stream having arranged in its path a needle electrode isolated from ground potential. A high DC potential is applied to the needle electrode. Whereas one terminal of the high DC voltage is applied to the needle electrode, the other terminal of this DC voltage supply is connected to ground.
  • the arrangement is adapted principally for producing air ions of a predetermined polarity in any desired space, and preferably in motor vehicles.
  • a group of a number of electrically isolated needle electrodes are arranged in the path of an air stream, and have applied to them a high DC potential.
  • the object of the present invention is achieved, in a novel manner, by providing an ionization arrangement in which only a single metallic needle electrode is used.
  • the DC voltage applied to the electrode is adjusted to have a potential which is just equal to the ionization field strength, or slightly in excess thereof.
  • the maximum possible nonhomogeneity of the field is realized.
  • the field lines in the region of the needle point are of substantially greater density than when a number of neighboring needle points are applied.
  • the field lines become divided or distributed among the plurality of needle points.
  • the ionization field strength is attained with a lower voltage, when using only a single needle point, than when using a number or a plurality of needle points. If, now, care is taken to assure that the applied voltage is maintained so low that the ionization field strength may become only slightly exceeded, then only a relative small amount of energy becomes released so that the ozone and nitrous oxide production is substantially small or even negligible.
  • the amount of ion concentration which may be realized through the application of the present invention has been found to be adequate through experience for all climatic and therapeutic purposes.
  • an incredibly high ion concentration is realized in the passing air stream.
  • an electrostatic volt meter is located 50 centimeters from the ion source, and the volt meter has a measuring range of 250 volts, full discharge is achieved in ten seconds through the use of a spherical electrode having a diameter of 15 millimeters.
  • With natural air ion concentration approximately 6 hours are required, in contrast with the present invention.
  • the ozone and nitrous oxide concentration is negligibly small.
  • a regulator arrangement is provided for varying the velocity of the air stream.
  • the ion concentration in the air stream, as well as in the space supplied by the air stream may be varied.
  • An arrangement for producing this effect may, for example, include electrodes which are charged oppositely to the unipolar air ions.
  • the ions can be deflected in a sidewise manner, and the ion density in the air stream may thereby be varied as desired.
  • An arrangement for producing a high concentration of unipolar air ions A moving stream of air is generated in an air duct or air tunnel, through, for example, a fan arrangement.
  • a needle electrode Mounted along the wall of the air duct is a needle electrode which is electrically insulated from the walls of the duct.
  • a DC voltage source applies a DC potential to the needle electrode through one of its terminals.
  • the other terminal of the DC voltage supply is connected to both the wall of the air duct and to ground.
  • Ions of one polarity are attracted to the walls of the air duct, whereas the ions of opposite polarity are conveyed along and taken from the duct.
  • a trapping grate mounted within the air duct and also at ground potential, serves to further trap ions of that polarity which is desired to be removed from the air stream and which have not been caught by the walls of the air duct.
  • an electrically isolated deflection duct is provided, to which a DC potential is applied for the purpose of deflecting the emerging ions and thereby varying the density of the ions stream.
  • FIG. I is a functional schematic diagram and shows the ionization arrangement in accordance with the present invention.
  • FIG. 2 is a functional schematic diagram and shows another embodiment of the arrangement of FIG. 1.
  • a ventilating fan 2 is located within an air tunnel or air duct 1.
  • the ventilating fan 2 is driven by an operating motor 3 energized from an alternating current source having the terminal 5.
  • a variable resistor 4 is connected in the motor circuit for the motor 3, for the purpose of regulating the operation of this motor.
  • a rod-shaped electrode 6 is mounted and inserted into the duct I by means of an insulating member 8.
  • the dielectric member 8 isolates the electrode electrically from the walls of the duct 1.
  • the electrode 6 terminates in a needle point 7 which is hairfine.
  • the electrode 6 with this needle point is made of duct resisting material such as stainless steel, for example.
  • a metallic grate or screen 9 is situated in the flow path of the air beyond the needle point 7. This metallic grate or screen 9 is electrically connected to the wall of the duct or air passage 1. The electrodes 10 are provided beyond this grate 9 and along the sides of the duct and in proximity of the duct.
  • a DC voltage may be applied to the tenninals 11. This voltage may be applied through, for example, a battery.
  • the adjustable resistor 12 connected across the terminals 11 functions in conjunction with the DC source applied to these terminals 11, so as to produce a source of high DC voltage.
  • the winding of the adjustable resistor 12 is connected across the terminals 11, of which one terminal 13 is connected to the wall of the air duct 1.
  • the movable contact 14 of the adjustable resistor 12 is connected to the electrode 6.
  • An additional adjustable resistor 15 has its winding connected across the terminals 11 and hence across the DC source applied to these terminals.
  • the movable contact 16 of this adjustable resistor 15 is connected to the electrodes l0.
  • air is set into motion through the duct or tunnel l, by means of the ventilating fan 2.
  • An electrical field prevails between the needle point 7 and the walls of the duct or tunnel l, with the condition that a high concentration of field lines exists at the point 7.
  • the adjustable resistor is set through the movable contact 14 such that the potential applied to the electrode 6 attains the ionization field strength.
  • both positive and negative air ions are produced in the region or proximity of the needle point 7.
  • the positive air ions become caught or trapped by the wall of the duct 1 which is charged to opposite polarity, or by the metallic grate 9.
  • the negative air ions stream out of the duct and become deflected through the action of the electrodes 10 which have a positive charge.
  • the speed of the motor 3 may be correspondingly varied in an increasing or decreasing manner. Any such change in the speed of the motor 3 is reflected in the speed of the fan 2 which thereby changes or varies the speed of an air flow to the tunnel or duct 1.
  • the mass flow of air through the duct 1 may be increased or decreased by correspondingly increasing or decreasing rota tional speed of the fan.
  • the ion concentration may be regulated.
  • the potential applied to the needle point 7 may be selectively varied.
  • the deflection of the negative ions may be selectively established, in a predetermined manner, and as a result a desired distribution or separation of ions in the air stream may be realized.
  • FIG. 2 three air ducts l7, l8 and 19 are associated with the ventilating fan 2.
  • Each of these air ducts contain an insulated needle electrode 20, 21 and 22, respectively.
  • Each of the air ducts for example, is provided with a grate 23, 24 and 25.
  • Deflecting electrodes 26 are, moreover, also installed as part of the embodiment of FIG. 2. This arrangement of FIG. 2 has the particular advantage of increasing the ion yield through the present invention.
  • An arrangement for producing unipolar air ions comprising, in combination, a plurality of duct means for subdividing a mass of moving air into a plurality of streams each of which moves along a separate path; an ionization electrode for each said duct means, each ionization electrode having a single pointed portion and located in the path of the respective air stream, each of said duct means having electrically conductive baffle walls extending in the general direction of air flow for shielding the ionization electrodes from each other, whereby the strongly nonhomogeneous field surrounding said pointed portion of each said ionization electrode is not distorted by the field surrounding the pointed portion of another ionization electrode; and means for establishing a potential difference between said ionization electrodes and said electrically conductive baffle walls sufficient to establish a field surrounding said pointed portion of each ionization electrode to cause ionization of the air within the respective air stream.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Mechanical Engineering (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Epidemiology (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrostatic Separation (AREA)
  • Elimination Of Static Electricity (AREA)
US766126A 1967-10-09 1968-10-09 Arrangement for producing unipolar air ions Expired - Lifetime US3582711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1967S0034757 DE1679532B1 (de) 1967-10-09 1967-10-09 Anordnung zur Erzeugung unipolarer Luftionen

Publications (1)

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US3582711A true US3582711A (en) 1971-06-01

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US766126A Expired - Lifetime US3582711A (en) 1967-10-09 1968-10-09 Arrangement for producing unipolar air ions

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US (1) US3582711A (enrdf_load_stackoverflow)
AT (1) AT287249B (enrdf_load_stackoverflow)
BE (1) BE722003A (enrdf_load_stackoverflow)
CH (1) CH486672A (enrdf_load_stackoverflow)
DE (1) DE1679532B1 (enrdf_load_stackoverflow)
FR (1) FR1588937A (enrdf_load_stackoverflow)
GB (1) GB1227607A (enrdf_load_stackoverflow)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832554A (en) * 1972-06-22 1974-08-27 Armstrong Cork Co Generation of negative ions
US3873835A (en) * 1973-11-02 1975-03-25 Vladimir Ignatjev Ionizer
US4041768A (en) * 1975-01-15 1977-08-16 Societe Nationale Des Petroles D'aquitaine Device for measuring the mass of particles of an aerosol per volume unit
EP0004124A1 (en) * 1978-03-15 1979-09-19 Pye (Electronic Products) Limited Apparatus and method for trace vapour detection
US4271452A (en) * 1979-01-22 1981-06-02 Lee Jimmy L Automotive air conditioning apparatus
USRE30826E (en) * 1977-02-05 1981-12-15 Instrument for air ionization
US4317661A (en) * 1977-03-16 1982-03-02 Matsushita Electric Industrial Co., Ltd. Electronic air cleaner
US4319302A (en) * 1979-10-01 1982-03-09 Consan Pacific Incorporated Antistatic equipment employing positive and negative ion sources
US4333123A (en) * 1980-03-31 1982-06-01 Consan Pacific Incorporated Antistatic equipment employing positive and negative ion sources
US5055963A (en) * 1990-08-15 1991-10-08 Ion Systems, Inc. Self-balancing bipolar air ionizer
US5231428A (en) * 1990-12-11 1993-07-27 Xerox Corporation Imaging device which compensates for fluctuations in the speed of an image receiving surface
US5578112A (en) * 1995-06-01 1996-11-26 999520 Ontario Limited Modular and low power ionizer
US6287368B1 (en) * 1989-08-25 2001-09-11 Oy Airtunnel Ltd. Apparatus for the purification of air flue gases, or equivalent
US20040020070A1 (en) * 2000-12-25 2004-02-05 Kengo Ito Hair drier with minus ion producer
US6850403B1 (en) 2001-11-30 2005-02-01 Ion Systems, Inc. Air ionizer and method
US20050085178A1 (en) * 2003-08-26 2005-04-21 Bruce Hall System and method for preventing growth of mold or mildew in a building
US20060187597A1 (en) * 2005-01-17 2006-08-24 Koganei Corporation Static eliminator and electric discharge module
US20060227491A1 (en) * 2005-04-07 2006-10-12 Rovcal, Inc. Hair blower with positive and negative ion emitters
US20070056948A1 (en) * 2003-08-26 2007-03-15 Bruce Hall System and Method for Preventing Growth of Mold or Mildew in a Building
RU2344882C1 (ru) * 2007-05-21 2009-01-27 Алексей Михайлович Володин Устройство для инактивации и тонкой фильтрации вирусов и микроорганизмов в воздушном потоке
CN110278920A (zh) * 2019-04-22 2019-09-27 嵊州陌桑高科股份有限公司 一种装配于工厂化养殖室的由内向外式送风系统
CN112178813A (zh) * 2020-09-16 2021-01-05 佛山市顺富元亨电子有限公司 一种自动变频静电空气消毒机
US10938188B2 (en) * 2018-04-02 2021-03-02 Igistec Co., Ltd. Ion wind generating device
US20220313863A1 (en) * 2021-04-06 2022-10-06 John Chris Karamanos Devices and systems for concentrated biogenic ionization

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282178A1 (fr) * 1974-08-14 1976-03-12 Chassery Georges Procede et dispositif pour la production d'ions negatifs
GB1569176A (en) * 1976-01-09 1980-06-11 Amcor Ltd Ionization device
DE2855273A1 (de) * 1978-12-21 1980-07-03 Karl Hermann Hornung Elektrisches haushalts-klimageraet
DE3173286D1 (en) * 1980-05-06 1986-02-06 Fleck Carl M Electrostatic air filter
IL66297A0 (en) * 1982-07-12 1982-11-30 Amcor Ltd Apparatus for improvement of air quality in passenger airplane cabins
FR2579485A1 (fr) * 1985-03-26 1986-10-03 Chenu Christine Phyto-ioniseur
GB9020860D0 (en) * 1990-09-25 1990-11-07 Mountain Breeze Ltd Improvements in and relating to air ionisers
DE4334956C2 (de) * 1993-10-14 2000-10-12 Lk Luftqualitaet Ag Reussbuehl Verfahren zur Luftbehandlung mit Ionen sowie Vorrichtung zur Durchführung des Verfahrens
RU2154329C2 (ru) * 1998-03-11 2000-08-10 Лизунов Виктор Сергеевич Устройство создания искусственной молнии
DE10007523C2 (de) 2000-02-18 2002-03-14 Lk Luftqualitaet Ag Reussbuehl Verfahren zur Luftbehandlung mit Ionen sowie Vorrichtung zur Durchführung des Verfahrens
DE10360237A1 (de) * 2003-12-12 2005-07-21 LK Luftqualität AG Anordnung zur Beeinflussung und Behandlung der Luft wenigstens eines Raumes
DE102008049278A1 (de) * 2008-09-26 2010-04-01 Behr Gmbh & Co. Kg Mehrzonenklimaanlage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB420360A (en) * 1933-03-20 1934-11-20 Constantin Prodromos Yaglou Improvements in or relating to the ionising of gases, more particularly applicable to conditioning air for ventilation
US1984159A (en) * 1931-11-26 1934-12-11 Gen Electric Inhaling device
US2043217A (en) * 1933-05-04 1936-06-02 Carrier Engineering Corp Method and means for controlling the ionic content of air
US2264495A (en) * 1936-07-09 1941-12-02 Servel Inc Ionization of gas
US2928941A (en) * 1955-04-04 1960-03-15 Ionaire Inc Forced air ion generator
US2934648A (en) * 1955-04-01 1960-04-26 Messen Jaschin G A Apparatus for the electric charging by means of radioactive preparations of matter suspended in a gas stream
US3403252A (en) * 1960-02-29 1968-09-24 Westinghouse Electric Corp Air processing apparatus and ion generator comprising an electromagnetic radiation source and a stable electron emitting photosensitive member

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB414687A (en) * 1932-11-08 1934-08-08 Constantin Prodromos Yaglou A method and apparatus for producing or regulating a state in a fluid by electrical treatment thereof, more particularly in air for ventilation
DE1857207U (de) * 1961-04-17 1962-08-23 Philco Corp Ionisierungsgeraet.
US3179849A (en) * 1964-07-15 1965-04-20 Simco Co Inc Shockless ionizing air nozzle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1984159A (en) * 1931-11-26 1934-12-11 Gen Electric Inhaling device
GB420360A (en) * 1933-03-20 1934-11-20 Constantin Prodromos Yaglou Improvements in or relating to the ionising of gases, more particularly applicable to conditioning air for ventilation
US2043217A (en) * 1933-05-04 1936-06-02 Carrier Engineering Corp Method and means for controlling the ionic content of air
US2264495A (en) * 1936-07-09 1941-12-02 Servel Inc Ionization of gas
US2934648A (en) * 1955-04-01 1960-04-26 Messen Jaschin G A Apparatus for the electric charging by means of radioactive preparations of matter suspended in a gas stream
US2928941A (en) * 1955-04-04 1960-03-15 Ionaire Inc Forced air ion generator
US3403252A (en) * 1960-02-29 1968-09-24 Westinghouse Electric Corp Air processing apparatus and ion generator comprising an electromagnetic radiation source and a stable electron emitting photosensitive member

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3832554A (en) * 1972-06-22 1974-08-27 Armstrong Cork Co Generation of negative ions
US3873835A (en) * 1973-11-02 1975-03-25 Vladimir Ignatjev Ionizer
US4041768A (en) * 1975-01-15 1977-08-16 Societe Nationale Des Petroles D'aquitaine Device for measuring the mass of particles of an aerosol per volume unit
USRE30826E (en) * 1977-02-05 1981-12-15 Instrument for air ionization
US4317661A (en) * 1977-03-16 1982-03-02 Matsushita Electric Industrial Co., Ltd. Electronic air cleaner
EP0004124A1 (en) * 1978-03-15 1979-09-19 Pye (Electronic Products) Limited Apparatus and method for trace vapour detection
US4271452A (en) * 1979-01-22 1981-06-02 Lee Jimmy L Automotive air conditioning apparatus
US4319302A (en) * 1979-10-01 1982-03-09 Consan Pacific Incorporated Antistatic equipment employing positive and negative ion sources
US4333123A (en) * 1980-03-31 1982-06-01 Consan Pacific Incorporated Antistatic equipment employing positive and negative ion sources
US6287368B1 (en) * 1989-08-25 2001-09-11 Oy Airtunnel Ltd. Apparatus for the purification of air flue gases, or equivalent
US6118645A (en) * 1990-08-15 2000-09-12 Ion Systems, Inc. Self-balancing bipolar air ionizer
WO1992003863A1 (en) * 1990-08-15 1992-03-05 Ion Systems, Inc. Self-balancing bipolar air ionizer
US5055963A (en) * 1990-08-15 1991-10-08 Ion Systems, Inc. Self-balancing bipolar air ionizer
JP3210941B2 (ja) 1990-08-15 2001-09-25 アイオン・システムズ・インコーポレイテッド 自己平衡化二極空気イオン化器
US5231428A (en) * 1990-12-11 1993-07-27 Xerox Corporation Imaging device which compensates for fluctuations in the speed of an image receiving surface
US5578112A (en) * 1995-06-01 1996-11-26 999520 Ontario Limited Modular and low power ionizer
US6056808A (en) * 1995-06-01 2000-05-02 Dkw International Inc. Modular and low power ionizer
US6910281B2 (en) 2000-12-25 2005-06-28 Matsushita Electric Works, Ltd. Hair drier with minus ion producer
US20040020070A1 (en) * 2000-12-25 2004-02-05 Kengo Ito Hair drier with minus ion producer
US6850403B1 (en) 2001-11-30 2005-02-01 Ion Systems, Inc. Air ionizer and method
US20050085178A1 (en) * 2003-08-26 2005-04-21 Bruce Hall System and method for preventing growth of mold or mildew in a building
US20070056948A1 (en) * 2003-08-26 2007-03-15 Bruce Hall System and Method for Preventing Growth of Mold or Mildew in a Building
US20060187597A1 (en) * 2005-01-17 2006-08-24 Koganei Corporation Static eliminator and electric discharge module
US7561403B2 (en) * 2005-01-17 2009-07-14 Koganei Corporation Static eliminator and electric discharge module
US20060227491A1 (en) * 2005-04-07 2006-10-12 Rovcal, Inc. Hair blower with positive and negative ion emitters
RU2344882C1 (ru) * 2007-05-21 2009-01-27 Алексей Михайлович Володин Устройство для инактивации и тонкой фильтрации вирусов и микроорганизмов в воздушном потоке
US10938188B2 (en) * 2018-04-02 2021-03-02 Igistec Co., Ltd. Ion wind generating device
CN110278920A (zh) * 2019-04-22 2019-09-27 嵊州陌桑高科股份有限公司 一种装配于工厂化养殖室的由内向外式送风系统
CN112178813A (zh) * 2020-09-16 2021-01-05 佛山市顺富元亨电子有限公司 一种自动变频静电空气消毒机
US20220313863A1 (en) * 2021-04-06 2022-10-06 John Chris Karamanos Devices and systems for concentrated biogenic ionization

Also Published As

Publication number Publication date
DE1679532B1 (de) 1970-12-10
FR1588937A (enrdf_load_stackoverflow) 1970-03-16
AT287249B (de) 1971-01-11
CH486672A (de) 1970-02-28
GB1227607A (enrdf_load_stackoverflow) 1971-04-07
BE722003A (enrdf_load_stackoverflow) 1969-03-14

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