TW371284B - Filtration material of filter and air cleaning device using the filtration material - Google Patents

Filtration material of filter and air cleaning device using the filtration material

Info

Publication number
TW371284B
TW371284B TW086117897A TW86117897A TW371284B TW 371284 B TW371284 B TW 371284B TW 086117897 A TW086117897 A TW 086117897A TW 86117897 A TW86117897 A TW 86117897A TW 371284 B TW371284 B TW 371284B
Authority
TW
Taiwan
Prior art keywords
filtration material
filter
cleaning device
air cleaning
pressure loss
Prior art date
Application number
TW086117897A
Other languages
English (en)
Inventor
Osamu Tanaka
Toshio Kusumi
Yoshiyuki Shibuya
Takeshi Tano
Original Assignee
Daikin Ind Ltd
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 Daikin Ind Ltd filed Critical Daikin Ind Ltd
Application granted granted Critical
Publication of TW371284B publication Critical patent/TW371284B/zh

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002Organic membrane manufacture
    • B01D67/0023Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B01D67/0027Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/02Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08Hollow fibre membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/10Supported membranes; Membrane supports
    • B01D69/107Organic support material
    • B01D69/1071Woven, non-woven or net mesh
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/30Polyalkenyl halides
    • B01D71/32Polyalkenyl halides containing fluorine atoms
    • B01D71/36Polytetrafluoroethene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/005Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2323/00Details relating to membrane preparation
    • B01D2323/08Specific temperatures applied
    • B01D2323/081Heating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2323/00Details relating to membrane preparation
    • B01D2323/08Specific temperatures applied
    • B01D2323/082Cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/02Details relating to pores or porosity of the membranes
    • B01D2325/0283Pore size
    • B01D2325/02834Pore size more than 0.1 and up to 1 µm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/20Specific permeability or cut-off range
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628Nonplanar uniform thickness material
    • Y10T428/24669Aligned or parallel nonplanarities
    • Y10T428/24694Parallel corrugations
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/249921Web or sheet containing structurally defined element or component
    • Y10T428/249953Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978Voids specified as micro
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/647Including a foamed layer or component

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Paper (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
TW086117897A 1996-12-04 1997-11-28 Filtration material of filter and air cleaning device using the filtration material TW371284B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32436696 1996-12-04

Publications (1)

Publication Number Publication Date
TW371284B true TW371284B (en) 1999-10-01

Family

ID=18164993

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086117897A TW371284B (en) 1996-12-04 1997-11-28 Filtration material of filter and air cleaning device using the filtration material

Country Status (10)

Country Link
US (1) US6261979B1 (zh)
EP (1) EP0972559B1 (zh)
JP (1) JP3467779B2 (zh)
KR (1) KR100517888B1 (zh)
CN (1) CN1140326C (zh)
AT (1) ATE320303T1 (zh)
CA (1) CA2274078C (zh)
DE (1) DE69735480T2 (zh)
TW (1) TW371284B (zh)
WO (1) WO1998026860A1 (zh)

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW438678B (en) * 1996-08-09 2001-06-07 Daikin Ind Ltd Fire-retardant filter medium and air filter unit using the same
GB9816118D0 (en) * 1998-07-23 1998-09-23 Pall Corp Filter assemblies
US6642513B1 (en) 1998-10-06 2003-11-04 General Electric Company Materials and apparatus for the detection of contraband
JP2000176262A (ja) * 1998-12-11 2000-06-27 Daikin Ind Ltd 多孔性材料、エアフィルター濾材、エアフィルターユニットおよびエアフィルター濾材用支持材料
EP1216145B2 (en) * 1999-09-22 2011-10-26 W.L. Gore & Associates GmbH Cover for aerobic treatment of biodegradable matter
JP4066913B2 (ja) * 1999-10-07 2008-03-26 ダイキン工業株式会社 エアフィルターパックおよびエアフィルターユニット
JP3584855B2 (ja) 1999-10-07 2004-11-04 ダイキン工業株式会社 エアフィルター濾材
US6474336B1 (en) * 2000-03-20 2002-11-05 Michael Wolfe Mini pleated face mask
JP3362730B2 (ja) * 2000-08-24 2003-01-07 ダイキン工業株式会社 エアフィルター濾材、それを用いたエアフィルターパック及びエアフィルターユニット並びにエアフィルター濾材の製造方法
KR100402559B1 (ko) * 2000-09-29 2003-10-30 (주) 일진프라임 열가소성 합성수지를 이용한 다공성 집진/집수장치필터 및그 제조방법
WO2002072237A1 (en) 2000-11-14 2002-09-19 Lydall, Inc. Air laid/wet laid gas filtration media
DE10065265A1 (de) * 2000-12-29 2002-07-04 Hans G Platsch Vorrichtung zum Bestäuben von Produkten
JP5051944B2 (ja) * 2001-03-16 2012-10-17 日東電工株式会社 エアフィルタ用濾材およびその製造方法
KR100570036B1 (ko) 2001-04-05 2006-04-10 다이킨 고교 가부시키가이샤 필터 여재, 그것을 이용한 필터 팩 및 에어 필터 유니트및 필터 여재의 제조 방법
JP4826023B2 (ja) * 2001-04-05 2011-11-30 ダイキン工業株式会社 フィルタ濾材、それを用いたフィルタパック及びエアフィルタユニット並びにフィルタ濾材の製造方法
JP2002346319A (ja) * 2001-05-21 2002-12-03 Nitto Denko Corp タービン用吸気フィルタ濾材
JP2002346320A (ja) * 2001-05-24 2002-12-03 Daikin Ind Ltd フィルタ濾材、フィルタパック及びエアフィルタユニットの製造方法
EP1266681B1 (en) 2001-06-13 2013-12-25 Nitto Denko Corporation Filter medium for turbine and methods of using and producing the same
US6999273B2 (en) * 2002-02-13 2006-02-14 Seagate Technology Llc Filter assembly for a data storage device
US20040261376A1 (en) * 2003-06-26 2004-12-30 Morgan Lee Pendleton Pleated air filter with reverse pulsating air flow cleaning
WO2006044712A1 (en) * 2004-10-14 2006-04-27 Pall Corporation Separation elements and methods of making separation elements
JP4914569B2 (ja) * 2004-12-08 2012-04-11 ダイワボウホールディングス株式会社 筒状フィルターおよびその製造方法
US7604687B2 (en) * 2005-06-03 2009-10-20 Daramic Llc Gas filtration media
DE102005037313A1 (de) * 2005-08-04 2007-02-15 Carl Freudenberg Kg Filterelement und Anordnung
ES2529580T3 (es) * 2005-10-04 2015-02-23 Toray Industries, Inc. Material textil no tejido para filtros
JP4963185B2 (ja) 2006-03-28 2012-06-27 日東電工株式会社 ポリテトラフルオロエチレン多孔質膜の製造方法とフィルター濾材ならびにフィルターユニット
US7585358B2 (en) * 2006-08-24 2009-09-08 Seagate Technology Llc Small and large particle recirculation filter
JP5207220B2 (ja) * 2006-11-07 2013-06-12 三菱レイヨン株式会社 中空状多孔質膜用支持体、中空状多孔質膜およびそれらの製造方法
CN101795858A (zh) * 2007-07-18 2010-08-04 日东电工株式会社 防水透声膜、防水透声膜的制造方法及使用其的电器
US20100192531A1 (en) * 2007-09-08 2010-08-05 Nippon Muki Co., Ltd. Filter medium for air filter and air filter
US8986432B2 (en) * 2007-11-09 2015-03-24 Hollingsworth & Vose Company Meltblown filter medium, related applications and uses
WO2009062009A2 (en) * 2007-11-09 2009-05-14 Hollingsworth & Vose Company Meltblown filter medium
US8673040B2 (en) 2008-06-13 2014-03-18 Donaldson Company, Inc. Filter construction for use with air in-take for gas turbine and methods
US7942275B2 (en) * 2008-07-08 2011-05-17 Bha Group, Inc. Expanded PFTE membrane and method of making
JP5094610B2 (ja) * 2008-07-23 2012-12-12 日東電工株式会社 エアフィルタ濾材およびそれを用いたエアフィルタユニット
JP4944864B2 (ja) * 2008-11-04 2012-06-06 日東電工株式会社 ポリテトラフルオロエチレン多孔質膜およびその製造方法ならびに防水通気フィルタ
WO2010084912A1 (ja) * 2009-01-21 2010-07-29 日東電工株式会社 防水通音膜とその製造方法ならびにそれを用いた電気製品
US8950587B2 (en) 2009-04-03 2015-02-10 Hollingsworth & Vose Company Filter media suitable for hydraulic applications
US8262780B2 (en) * 2009-07-22 2012-09-11 Bha Group, Inc High performance gas turbine inlet filter (HEPA) using membrane media
US8679218B2 (en) 2010-04-27 2014-03-25 Hollingsworth & Vose Company Filter media with a multi-layer structure
JP5012990B2 (ja) * 2010-06-17 2012-08-29 ダイキン工業株式会社 多孔膜を備える濾材、その製造方法、フィルタパック、ならびにフィルタユニット
JP5651393B2 (ja) 2010-07-08 2015-01-14 出光興産株式会社 石油樹脂の製造方法
US10155186B2 (en) 2010-12-17 2018-12-18 Hollingsworth & Vose Company Fine fiber filter media and processes
US20120152821A1 (en) 2010-12-17 2012-06-21 Hollingsworth & Vose Company Fine fiber filter media and processes
US9295931B2 (en) * 2011-07-05 2016-03-29 Nitto Denko Corporation Porous polytetrafluoroethylene membrane and air filter medium
JP5917944B2 (ja) * 2012-02-23 2016-05-18 日東電工株式会社 混紡不織布、フィルタ濾材およびフィルタユニット
JP2014124578A (ja) * 2012-12-26 2014-07-07 Nippon Valqua Ind Ltd フィルター用ろ材およびその製造方法
US9694306B2 (en) 2013-05-24 2017-07-04 Hollingsworth & Vose Company Filter media including polymer compositions and blends
JP6453537B2 (ja) * 2013-12-27 2019-01-16 日東電工株式会社 透湿性濾材
US9777934B2 (en) 2014-02-19 2017-10-03 Fiber Bond Corporation Panel filter and method for manufacturing the same
CN105879698A (zh) * 2014-10-30 2016-08-24 杭州安普鲁薄膜科技有限公司 一种防霉膜
US10343095B2 (en) 2014-12-19 2019-07-09 Hollingsworth & Vose Company Filter media comprising a pre-filter layer
JP6115596B2 (ja) * 2014-12-26 2017-04-19 ダイキン工業株式会社 エアフィルタ用濾材、フィルタパック、エアフィルタユニット、およびエアフィルタ用濾材の製造方法
JP6933456B2 (ja) * 2015-09-30 2021-09-08 日東電工株式会社 エアフィルタ濾材、エアフィルタパック及びエアフィルタユニット
JP6372507B2 (ja) * 2016-03-11 2018-08-15 ダイキン工業株式会社 エアフィルタ用濾材、エアフィルタユニット、およびエアフィルタ用濾材の製造方法
CN112261980A (zh) * 2018-06-01 2021-01-22 日东电工株式会社 过滤器滤材和具备该过滤器滤材的过滤器单元
CN114340760B (zh) * 2019-08-30 2024-06-11 大金工业株式会社 空气过滤器滤材以及空气过滤器产品
WO2021235460A1 (ja) * 2020-05-18 2021-11-25 住友電気工業株式会社 フッ素樹脂シート、多層シート及びシールド材
CN114381863B (zh) * 2022-01-26 2024-03-12 南京瑞洁特膜分离科技有限公司 水刺无纺布基材的制法及其作为过滤膜支撑材料的应用

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596837A (en) 1982-02-22 1986-06-24 Daikin Industries Ltd. Semisintered polytetrafluoroethylene article and production thereof
US4557957A (en) * 1983-03-18 1985-12-10 W. L. Gore & Associates, Inc. Microporous metal-plated polytetrafluoroethylene articles and method of manufacture
JPS6058208A (ja) * 1983-09-09 1985-04-04 Kurabo Ind Ltd フイルタ−エレメントとその製法
US4588646A (en) 1984-10-15 1986-05-13 Athey Jr Robert D Protective sheet for articles of clothing and the like
US5019140A (en) 1988-12-21 1991-05-28 W. L. Gore & Associates, Inc. Irradiated expanded polytetrafluoroethylene composites, and devices using them, and processes for making them
JP2788976B2 (ja) 1989-04-26 1998-08-20 ジャパンゴアテック株式会社 フィルター材
DE69003114T2 (de) 1989-12-18 1994-04-07 Gore & Ass Neues filtermedium zu gebrauchen als chirurgische oder reinraummaske.
CA2074349C (en) 1991-07-23 2004-04-20 Shinji Tamaru Polytetrafluoroethylene porous film and preparation and use thereof
JP2792354B2 (ja) * 1991-07-23 1998-09-03 ダイキン工業株式会社 ポリテトラフルオロエチレン多孔膜
WO1993013849A1 (en) * 1992-01-14 1993-07-22 Daikin Industries, Ltd. Filter and filter element
US5366631A (en) 1992-02-10 1994-11-22 Pall Corporation Composite, supported fluorocarbon media
RU2124986C1 (ru) * 1993-01-25 1999-01-20 Дайкин Индастриз Лтд. Пористая политетрафторэтиленовая пленка и способ ее получения
JP3211447B2 (ja) 1993-01-25 2001-09-25 ダイキン工業株式会社 通気性シート状材料の積層方法
JPH08318114A (ja) * 1995-05-25 1996-12-03 Nitto Denko Corp エレクトレットフィルタ

Also Published As

Publication number Publication date
EP0972559A4 (en) 2000-04-05
DE69735480D1 (de) 2006-05-11
JP3467779B2 (ja) 2003-11-17
CA2274078C (en) 2006-10-10
KR100517888B1 (ko) 2005-09-29
CN1245446A (zh) 2000-02-23
WO1998026860A1 (fr) 1998-06-25
US6261979B1 (en) 2001-07-17
ATE320303T1 (de) 2006-04-15
CN1140326C (zh) 2004-03-03
EP0972559A1 (en) 2000-01-19
DE69735480T2 (de) 2006-10-19
EP0972559B1 (en) 2006-03-15
CA2274078A1 (en) 1998-06-25
KR20000057425A (ko) 2000-09-15

Similar Documents

Publication Publication Date Title
TW371284B (en) Filtration material of filter and air cleaning device using the filtration material
EP0633053A4 (en) POROUS FILM FROM POLYTETRAFLUORETHYLENE AND METHOD FOR THE PRODUCTION THEREOF.
ES268150U (es) Un aparato portatil purificador de agua.
AU6332098A (en) Personal air filtering and delivery systems
HUP9903194A2 (hu) Légszűrő
CA2132702A1 (en) Filter Cartridge
HK1074018A1 (en) Nanofiber filter media
CA2340219A1 (en) Air purifier
IL138882A0 (en) Air filter medium, air filter pack and air filter unit comprising the same and method for producing air filter medium
SE9903692D0 (sv) A method and device for cleaning air in a compressed air system
US3513643A (en) Filter
SE0302777D0 (sv) Luftfiltreringssystem
PL317320A1 (en) Filtering element with a fibrous coating and method of making same
CN205627360U (zh) 一种气体净化过滤板
JPH07313972A (ja) 携帯式浄水器とその使用方法
MX9704180A (es) Adyuvante de filtracion mejorado utilizado en aluviacion.
JPS6418423A (en) Micro-filter for use in filtering air
KR200371589Y1 (ko) 기능성헤파필터
TH10326B (th) เครื่องฟอกอากาศ ชนิดอัดอากาศสำหรับใช้ในบ้านเรือนและอาคาร
KR200291790Y1 (ko) 선풍기용 공기 여과장치
TH28787A (th) เครื่องฟอกอากาศ ชนิดอัดอากาศสำหรับใช้ในบ้านเรือนและอาคาร
KR960013997A (ko) 휴대용 정수기
PT101332A (pt) Processo e aparelho para filtragem e humidificacao de um fluxo de ar
DE602004012225D1 (de) Verbesserte Vorrichtung zum Filtern des Luftstroms bei pneumatischen Systemen
JPS55142512A (en) Using method of alternately negative and positive zeta potentials

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees