WO2018020932A1 - Milieu filtrant et appareil de purification d'air l'utilisant - Google Patents

Milieu filtrant et appareil de purification d'air l'utilisant Download PDF

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Publication number
WO2018020932A1
WO2018020932A1 PCT/JP2017/023468 JP2017023468W WO2018020932A1 WO 2018020932 A1 WO2018020932 A1 WO 2018020932A1 JP 2017023468 W JP2017023468 W JP 2017023468W WO 2018020932 A1 WO2018020932 A1 WO 2018020932A1
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WIPO (PCT)
Prior art keywords
layer
air
filter medium
base material
filter
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PCT/JP2017/023468
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English (en)
Japanese (ja)
Inventor
稲垣　純
由浩 辻
大輔 小森
港 加藤
Original Assignee
パナソニックＩｐマネジメント株式会社
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Priority to CN201780045971.XA priority Critical patent/CN109475799B/zh
Publication of WO2018020932A1 publication Critical patent/WO2018020932A1/fr

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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
    • A61L9/01—Deodorant compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties

Definitions

  • the present invention relates to a filter medium and an air cleaning device using the filter medium.
  • a filter medium having a deodorizing and removing action such as formaldehyde and an air purifier using the filter medium have the following configurations.
  • FIG. 8 is a perspective view showing a conventional air cleaning device. That is, as shown in FIG. 8, the filter medium 150 includes a base material and an amine compound for removing formaldehyde supported on the base material.
  • the air filter 101 is obtained by processing the filter medium 150 into a bellows shape so as to have a filter shape and fixing the filter medium 150 with a frame body 102.
  • the air purifying apparatus 100 is provided with the air filter 101 installed in an air flow path in a main body 105 provided with a blower 103 that allows air to pass through and an air supply grill 104.
  • Formaldehyde is released from the wallpaper and furniture in the house and causes health problems even at low concentrations. Therefore, it is desired to remove it as an indoor pollutant. For example, it has been shown that the contact efficiency between the air filter 101 and air can be improved without increasing the pressure loss of the air filter 101 by imparting a formaldehyde removal function to the substrate (for example, see Patent Document 1). reference).
  • the resin fiber that is the raw material of the base material may cause discoloration when used for a long time.
  • a method for preventing discoloration of the resin fiber that is, improving the weather resistance
  • a method using a light stabilizer and an ultraviolet absorber is known.
  • polypropylene fibers, which are resin fibers melt-mixing them into a resin composition made into a fiber by a known melt spinning method, weather resistance
  • the nonwoven fabric which improved can be obtained.
  • This nonwoven fabric can be used as a filter medium for an air cleaning device (see, for example, Patent Document 2).
  • Such a conventional filter medium and an air purifier using the filter medium can remove formaldehyde with a low pressure loss, but it is desired to further maintain the removal performance. That is, an amine compound is required to remove formaldehyde, but the amine compound is a basic substance and causes a neutralization reaction when it comes into contact with an acidic substance contained in particles in the air. Therefore, the amine compound in a filter medium decreased, and the subject that the removal performance of formaldehyde of an air cleaner fell occurred.
  • active components such as ozone, OH radicals, and NO radicals generated by ultraviolet rays are contained. For this reason, in the air cleaning apparatus that performs processing by sucking in a large amount of air, there is a problem that these active components react with the amine compound and formaldehyde removal performance is likely to deteriorate.
  • the conventional weather resistance improving method only shows a method for preventing discoloration of the nonwoven fabric itself, and does not mention an effective method for removing formaldehyde. For example, it was not possible to obtain information on how to dispose polypropylene fibers, light stabilizers, ultraviolet absorbers, and amine compounds.
  • the present invention solves the above-described conventional problems, and provides a filter medium that can effectively remove chemical substances such as formaldehyde and can stably maintain the effect over a long period of time, and an air cleaning device using the filter medium. It is an object.
  • the present invention is a filter medium comprising a downstream layer on the downstream side of the air flow with respect to the upstream layer and the upstream layer, the upstream layer containing a radical scavenger, and A fiber layer capable of collecting particles, and the latter layer is a fiber layer containing an adsorbent containing an amine compound, and has a sheet shape in which the former layer and the latter layer are in close contact with each other. . This achieves the intended purpose.
  • the present invention it is possible to provide a filter medium capable of effectively removing chemical substances such as formaldehyde and maintaining the effect stably over a long period of time, and an air cleaning device using the filter medium.
  • FIG. 1 is a perspective view showing an installation state of the air cleaning device according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the air cleaning device.
  • FIG. 3 is a perspective view of the air filter.
  • FIG. 4 is a configuration diagram of a filter medium used for the air filter.
  • FIG. 5 is a schematic sectional view of the filter medium.
  • FIG. 6 is an enlarged view of FIG.
  • FIG. 7 is a perspective view showing an air filter according to the second embodiment of the present invention.
  • FIG. 8 is a perspective view showing a conventional air cleaning device.
  • the filter medium according to claim 1 of the present invention is a filter medium having a downstream layer on the downstream side of the air flow with respect to the upstream layer and the upstream layer, the upstream layer including a radical scavenger and capturing particles. It is a fiber layer that can be collected, and the latter layer is a fiber layer containing an adsorbent containing an amine compound, and is formed into a sheet shape in which the former layer and the latter layer are in close contact with each other.
  • the amine compound is applied to the surface of the fibers constituting the latter layer.
  • the applied amine compound is exposed over a wide range on the surface of the filter medium constituting the latter layer. Therefore, the contact area with formaldehyde is improved, and the effect of removing chemical substances such as formaldehyde can be further improved.
  • the radical scavenger contains one or more of hindered amines, hindered phenols, and benzotriazoles.
  • active components such as ozone and radicals can be removed in the former layer, and air from which radicals have been removed is sprayed on the latter layer. Therefore, the effect which suppresses the performance deterioration of an amine compound by reducing the radicals contained in the air can be acquired. Moreover, the effect which prevents discoloration of a fiber layer can be acquired.
  • the content of the amine compound in the latter layer is high on the side of the close contact surface with the front layer, and lower as it goes away from the close contact surface.
  • the ratio which an amine compound remains can be kept predetermined, and initial stage performance can be maintained over a long period of time.
  • the air purifying apparatus includes a main body case having an intake port and an exhaust port, a blower provided in the main body case, and an air filter provided between the suction side of the blower and the intake port.
  • An air filter is an air cleaning device comprising the filter medium according to claim 1.
  • the air filter is different from the pre-stage layer disposed downstream of the base material layer in addition to the pre-filter as the pre-stage layer and the base material layer as the post-stage layer.
  • FIG. 1 is a perspective view showing an installation state of the air purifying apparatus according to Embodiment 1.
  • the air purification apparatus 1 shown in this Embodiment is installed on the floor 3 of the room 2, and can perform an air purification operation.
  • Formaldehyde is generated from wallpaper 4 or furniture 5. Since the generated formaldehyde has a higher specific gravity than air, it is present near the floor 3 in a high concentration state.
  • Outdoor air contains acidic substance particles and active components such as ozone, OH radicals, and NO radicals generated by the action of ultraviolet rays. For this reason, when a person moves indoors or outdoors, or when air flows from the outside by opening / closing the window 6, acidic substance particles or active components such as ozone, OH radicals, and NO radicals enter the room.
  • FIG. 2 is a cross-sectional view of the air cleaning device according to the first embodiment.
  • the air cleaning device 1 according to the present embodiment includes a blower 8 and an air filter 9 in a main body case 7.
  • the main body case 7 has a substantially vertically long box shape, and is provided with an intake port 10 and an exhaust port 11.
  • the air inlet 10 has a substantially rectangular shape, and is provided on the front side surface portion of the main body case 7. Further, the exhaust port 11 is provided in the top surface portion of the main body case 7.
  • the air blower 8 is provided in the air path between the air inlet 10 and the air outlet 11 of the main body case 7.
  • the air blower 8 is formed of a scroll-shaped casing 12, a blade 13 that is a centrifugal fan provided in the casing 12, and an electric motor 14 that rotates the blade 13.
  • the air filter 9 is located near the air inlet 10 of the main body case 7. Indoor air containing formaldehyde sucked into the main body case 7 from the air inlet 10 by the air blowing unit 8 is blown to the air outlet 11 through the air filter 9. That is, the air containing formaldehyde in the room is cleaned by the air filter 9 and blown into the room by the blower unit 8.
  • the air filter 9 may collect not only formaldehyde but also particles such as coarse dust. Details will be described later.
  • FIG. 3 is a perspective view of the air filter according to the first embodiment.
  • FIG. 4 is a configuration diagram of a filter medium used for the air filter according to the first embodiment.
  • the air filter 9 includes a pleated filter medium 15 and a frame-shaped shape holding portion 16 provided on the outer periphery of the filter medium 15 to hold the filter medium 15 in a pleated shape. Formed from.
  • the shape holding portion 16 is formed from a square-shaped frame portion 17 and an adhesive member 18 provided between the frame portion 17 and the filter medium 15. That is, the frame part 17 is located at the periphery of the pleated filter medium 15, and the filter medium 15 is fixed to the frame part 17 by the adhesive member 18.
  • FIG. 5 is a schematic cross-sectional view of the filter medium according to the first embodiment.
  • FIG. 6 is an enlarged view of FIG.
  • the filter medium 15 before pleating is provided with a base material layer 19 and a fiber layer 20 as shown in FIGS.
  • the fiber layer 20 is provided on the upstream surface of the air flow blown to the base material layer 19. That is, the filter medium is installed in the air cleaning device 1 so that the fiber layer 20 is on the upstream side with respect to the air flow.
  • the base material layer 19 is formed of fibers containing at least one of glass fibers, pulp fibers, resin fibers, carbon fibers, and inorganic fibers.
  • Examples of the method for producing the base material layer 19 include a spunbond method, a dry or wet papermaking method, a melt blown method, a spunbond method, an airlaid method, and a thermal bond method.
  • the wet papermaking method is preferable.
  • the base material layer 19 can have a density gradient so as to gradually decrease from dense to sparse when viewed from the fiber layer 20 side.
  • the density of the fibers constituting the base material layer 19 is closest to the bonding surface with the fiber layer 20 and becomes sparse as the distance from the bonding surface increases.
  • the number of fibers in the base material layer 19 in a dense portion where the base material layer 19 and the fiber layer 20 are in close contact is nine.
  • the number of fibers of the base material layer 19 in a sparse part away from the fiber layer 20 is five.
  • the base material layer 19 having such a configuration when the adsorbent containing an amine compound is applied to the fiber, the adsorbent content on the surface where the base material layer 19 and the fiber layer 20 are in close contact with each other can be easily obtained. It can be increased relatively. That is, it is possible to make a configuration in which the content of the amine-based compound in the base material layer 19 is high on the side of the close contact surface with the fiber layer 20 and decreases as the distance from the close contact surface increases.
  • the basis weight of the base material layer 19 is preferably 10 to 100 g / m 2 .
  • the basis weight is less than 10 g / m 2 , the bending resistance of the base material layer 19 decreases, so that it becomes difficult to reduce the productivity of the pleating process and to maintain the filter shape.
  • the weight per unit area exceeds 100 g / m 2 , the pressure loss of the base material layer 19 increases, and thus the pressure loss of the air filter 9 increases, which is not preferable.
  • the average fiber diameter of the fibers constituting the base material layer 19 is preferably 1 to 50 ⁇ m.
  • the average fiber diameter is less than 1 ⁇ m, the strength of the fiber is low and the strength as a reinforcing material becomes insufficient.
  • the average fiber diameter exceeds 50 ⁇ m, the thickness of the base material layer 19 is increased, and the structural pressure loss due to pleating increases, which is not preferable.
  • the fiber layer 20 may be made of the same material as the base material layer 19.
  • the fiber layer 20 and the base material layer 19 can be integrated using an adhesive.
  • the fiber layer 20 is melted by heating and bonded to the base material layer 19, so that the filter medium 15 can be integrated.
  • the average fiber diameter of the fibers constituting the fiber layer 20 is preferably 1 to 10 ⁇ m.
  • the average fiber diameter is less than 1 ⁇ m, the basis weight is required to be increased because the self-supporting property is poor. As a result, the pressure loss of the fiber layer 20 increases, which is not preferable.
  • the average fiber diameter exceeds 10 ⁇ m, the collection efficiency of the fiber layer 20 decreases, which is not preferable.
  • a preferable average fiber diameter is 2 to 6 ⁇ m.
  • the fiber diameter of the fiber layer 20 is preferably thinner than that of the base material layer 19. Thereby, it is possible to obtain a balanced filter medium 15 having high dust collection efficiency and low pressure loss.
  • the filter medium 15 thus prepared has a pressure loss greater in the fiber layer 20 and smaller in the base material layer 19. For example, the pressure loss when air is flowed at a flow rate of 5.3 cm / s is about 40 Pa for the fiber layer 20 and about 3 Pa for the base material layer 19.
  • polyacrylonitrile PAN
  • polypropylene PP
  • PE polyethylene
  • PEO polyethylene oxide
  • PEN polyethylene naphthalate
  • PET polyethylene terephthalate
  • PES polyethersulfone
  • polymethacrylic acid polymethacrylic Methyl acid
  • PVDF polyvinylidene fluoride
  • PVVC polyvinyl chloride
  • PVA polytetrafluoroethylene
  • PC polycarbonate
  • polystyrene polyamide, polyimide, polyamideimide, aramid, polyimide benzazole
  • polyglycol examples include acid (PGA), polylactic acid (PLA), polyurethane (PU), cellulose compound, polypeptide, nylon and the like.
  • the adsorbent containing the amine compound of the present invention contains an amine compound in at least a part of the components. It is known that an amine compound and formaldehyde cause the following irreversible chemical reaction.
  • the amine compound has reactivity with aldehyde compounds such as acetaldehyde and propionaldehyde in addition to formaldehyde.
  • aldehydes are substances having an unpleasant odor
  • the filter medium of the present invention can also be applied to deodorization intended for aldehydes.
  • the above reaction is called chemical adsorption because it involves a chemical reaction, and is distinguished from physical adsorption such as activated carbon.
  • chemical adsorption since the adsorbed aldehydes are not re-released, there is an advantage that aldehydes can be removed stably.
  • the amine compound is a basic substance, and when it comes into contact with an acidic substance in the air, there is a problem that a neutralization reaction occurs and the performance of removing aldehydes decreases.
  • the acidic substance here is mist such as nitric acid, sulfuric acid, acetic acid, or suspended particles containing these components.
  • active components such as ozone, OH radicals, and NO radicals generated by ultraviolet rays are contained.
  • active components such as acidic substances and OH radicals are removed from the air sucked into the main body of the air cleaning device 1 with the fiber layer 20 containing a radical scavenger.
  • the aldehydes such as formaldehyde are removed with an adsorbent containing an amine compound contained in the base material layer 19.
  • the fiber layer 20 containing a light stabilizer and an antioxidant which are radical scavengers
  • a light stabilizer and an antioxidant which are radical scavengers
  • the radical scavenger contained in the fiber layer 20 of the present invention a general light stabilizer and antioxidant can be used.
  • hindered amine light stabilizers, hindered phenol antioxidants, benzotriazole light stabilizers, and the like can be used.
  • TINUVIN 111 manufactured by BASF Japan; N, N ′, N ′′, N ′ ′′-tetrakis- (4,6-bis- (butyl- (N-methyl-2,2,6 , 6-Tetramethylpiperidin-4-yl) amino) -triazin-2-yl) -4,7-diazadecane-1,10-diamine (45%), dimethyl succinate and 4-hydroxy-2,2,6 , 6-tetramethyl-1-piperidineethanol polymer (55%)), Uvinul 5050H (manufactured by BASF Japan; sterically hindered amine oligomer), CHIMASSORB 2020 (manufactured by BASF Japan); dibutylamine-1,3 , 5-Triazine-N, N'-bis (2,2,6,6-tetra Me
  • the base material layer 19 including an adsorbent containing an amine compound is used.
  • the adsorbent containing an amine compound is included in the base material layer 19 by dispersing the adsorbent in an aqueous solution, adding a small amount of a surfactant and a binder, and then immersing the base material layer 19 in the aqueous solution. There is a way to do it.
  • Other methods include a method of spraying the aqueous solution described above onto the base material layer 19 and a method of applying the aqueous solution to the base material layer 19 with a brush or a roller.
  • the method of including the radical scavenger in the fiber layer 20 is similarly a method of dispersing the radical scavenger in an organic solvent, adding an ultraviolet additive, and then immersing the fiber layer 20 in this solution.
  • examples thereof include a method of spraying the solution onto the fiber layer 20 and a method of applying the solution onto the fiber layer 20 with a brush or a roller.
  • the concentration of the adsorbent on the sprayed surface can be increased by spraying the aqueous solution described above onto the base material layer 19 from only one surface and drying it.
  • the content of the amine compound on the close contact surface between the base material layer 19 and the fiber layer 20 is high, and from the close contact surface As the distance increases, the filter medium 15 having a lower content can be obtained.
  • the fiber layer 20 and the base material layer 19 are set in order from the intake port 10 side.
  • the air filter 9 includes a fiber layer that is a preceding layer, that is, a fiber layer 20, and a fiber layer that is a subsequent layer provided downstream of the air flow with respect to the previous layer, that is, a base material layer 19. is there.
  • active components such as acidic substances and OH radicals are removed from the air sucked into the main body of the air cleaning device 1 with the fiber layer 20 containing the radical scavenger.
  • the adsorbent containing the amine compound contained in the base material layer 19 is used to remove aldehydes such as formaldehyde.
  • the amine-based compound contained in the subsequent layer is less likely to react with acidic components in the air and active components such as OH radicals. Therefore, it is possible to provide the filter medium 15 that stably maintains the collection performance over a long period of time and the air cleaning device 1 using the filter medium.
  • FIG. 7 is a perspective view showing an air filter according to the second embodiment.
  • the air filter 29 used in the air cleaning device 1 shown in the present embodiment includes a base material layer 19 and a fiber layer 20 processed into a pleat shape, a frame portion 17, and a pre-filter.
  • a filter 21 is provided.
  • the prefilter 21 is a non-woven fiber layer having a fiber diameter and openings necessary for collecting particles such as coarse dust, and is obtained by spraying and drying a radical scavenger.
  • the pre-filter 21 can be made of a general nonwoven fabric or a net such as a net having a performance capable of collecting acidic substances contained in particles in the air, and preferably a static electricity capable of collecting particles using electric power. An electric filter may be used.
  • the air filter 29 integrated with the pre-filter 21 can be obtained by adhering the pre-filter 21 with an adhesive or the like so that no gap is generated in the frame portion 17.
  • the base material layer 19 includes an adsorbent containing at least an amine compound
  • the fiber layer 20 includes a radical scavenger.
  • the filter medium 15 includes a pre-filter 21, a base material layer 19, and a fiber layer 20.
  • the pre-filter 21 is a fiber layer that contains a radical scavenger as a preceding layer and can collect coarse dust.
  • the base material layer 19 is disposed downstream of the prefilter 21 as a subsequent layer.
  • the fiber layer 20 is disposed on the downstream side of the base material layer 19.
  • the fiber layer 20 is a fiber layer different from the prefilter 21 and is a fiber layer containing a radical scavenger. That is, the filter medium 15 in the second embodiment is obtained by bonding the prefilter 21, the base material layer 19, and the fiber layer 20 so as to be integrated through the frame portion 17.
  • the air filter 29 includes a pre-filter 21 as a front layer, a base layer 19 as a rear layer, and a fiber layer 20 on the downstream side of the base layer 19. It is bonded so as to be integrated with each other.
  • the prefilter 21 is a fiber layer that contains a radical scavenger and can collect particles.
  • the base material layer 19 is a fiber layer containing an adhesive containing an amine compound.
  • the fiber layer 20 is a fiber layer different from the prefilter 21 and is a fiber layer containing a radical scavenger. According to this configuration, since the prefilter 21, the base material layer 19, and the fiber layer 20 are bonded together via the frame portion 17, a part of the air passing through the air filter 29 is pressurized.
  • the base material layer 19 As viewed from the base material layer 19, there is a radical scavenger contained in the prefilter 21 on the upstream side, and a radical scavenger contained in the fiber layer 20 on the downstream side. Therefore, the amine compound contained in the base material layer 19 is not directly exposed to active components such as acidic substances and OH radicals not only from the upstream side but also from the downstream side. According to this configuration, even when the operation of the air cleaning device 1 is stopped, the performance of the adsorbent contained in the base material layer 19 is hardly deteriorated, and the effect that the collection performance can be stably maintained for a long time is obtained. be able to.
  • the prefilter 21, that is, the fiber layer capable of collecting particles as the previous layer may be the same as the fiber layer 20, or may have a larger opening of the filter medium than the fiber layer 20.
  • a filter medium according to the present invention and an air cleaning device using the filter medium include a base material layer and a fiber layer capable of collecting particles.
  • the base material layer includes an adsorbent containing an amine compound.
  • the fiber layer contains a radical scavenger and is in the form of a sheet in which the base material layer and the fiber layer are in close contact.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Manufacturing & Machinery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Artificial Filaments (AREA)

Abstract

Un milieu filtrant (15) selon la présente invention comporte une couche d'étage avant et une couche d'étage arrière sur un côté aval d'un flux d'air par rapport à la couche d'étage avant, la couche d'étage avant étant une couche de fibres comprenant un agent de capture de radicaux et capable de capturer des particules, la couche d'étage arrière étant une couche de fibres comprenant un agent adsorbant contenant un composé amine, caractérisé en ce que la couche d'étage avant et la couche d'étage arrière sont amenées en contact étroit l'une avec l'autre pour former une feuille.
PCT/JP2017/023468 2016-07-28 2017-06-27 Milieu filtrant et appareil de purification d'air l'utilisant WO2018020932A1 (fr)

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CN201780045971.XA CN109475799B (zh) 2016-07-28 2017-06-27 过滤器过滤材料和使用其的空气清洁装置

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JP2016148150A JP6738998B2 (ja) 2016-07-28 2016-07-28 フィルタろ材とそれを用いた空気清浄装置
JP2016-148150 2016-07-28

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WO2019167584A1 (fr) * 2018-02-27 2019-09-06 パナソニックＩｐマネジメント株式会社 Dispositif de purification d'air

Citations (3)

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JPH11128632A (ja) * 1997-10-31 1999-05-18 Toshiba Corp フィルターおよび空気清浄装置
JP2000117024A (ja) * 1998-10-09 2000-04-25 Toyobo Co Ltd 空気浄化用フィルター
JP2011132627A (ja) * 2009-12-24 2011-07-07 Toray Ind Inc 抗菌性有機重合体製品

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Publication number Priority date Publication date Assignee Title
CN102527158A (zh) * 2010-12-30 2012-07-04 东丽纤维研究所（中国）有限公司 一种耐高温过滤材料
CN110280123A (zh) * 2013-09-16 2019-09-27 恩弗里德系统公司 用于从室内空气中过滤甲醛的方法和系统
US20160256583A1 (en) * 2013-10-17 2016-09-08 Toagosei Co., Ltd. Deodorizing filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11128632A (ja) * 1997-10-31 1999-05-18 Toshiba Corp フィルターおよび空気清浄装置
JP2000117024A (ja) * 1998-10-09 2000-04-25 Toyobo Co Ltd 空気浄化用フィルター
JP2011132627A (ja) * 2009-12-24 2011-07-07 Toray Ind Inc 抗菌性有機重合体製品

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CN109475799B (zh) 2021-01-19
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JP2018015710A (ja) 2018-02-01

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