WO2017063137A1 - Dispositif d'absorption d'humidité de gel de silice réutilisable conçu pour réduire l'humidité à l'intérieur d'un masque - Google Patents

Dispositif d'absorption d'humidité de gel de silice réutilisable conçu pour réduire l'humidité à l'intérieur d'un masque Download PDF

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Publication number
WO2017063137A1
WO2017063137A1 PCT/CN2015/091829 CN2015091829W WO2017063137A1 WO 2017063137 A1 WO2017063137 A1 WO 2017063137A1 CN 2015091829 W CN2015091829 W CN 2015091829W WO 2017063137 A1 WO2017063137 A1 WO 2017063137A1
Authority
WO
WIPO (PCT)
Prior art keywords
jar
absorbing material
moisture absorbing
moisture
mask
Prior art date
Application number
PCT/CN2015/091829
Other languages
English (en)
Inventor
Rocky Qu
Jex ZHANG
Zhao Xia Jin
Original Assignee
Honeywell International Inc.
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 Honeywell International Inc. filed Critical Honeywell International Inc.
Priority to CN201580085278.6A priority Critical patent/CN108472518B/zh
Priority to PCT/CN2015/091829 priority patent/WO2017063137A1/fr
Publication of WO2017063137A1 publication Critical patent/WO2017063137A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/003—Means for influencing the temperature or humidity of the breathing gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0415—Beds in cartridges
    • 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
    • B01D53/02—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 adsorption, e.g. preparative gas chromatography
    • B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • B01D53/0407—Constructional details of adsorbing systems
    • B01D53/0438—Cooling or heating systems
    • 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
    • B01D53/26—Drying gases or vapours
    • B01D53/261—Drying gases or vapours by adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/40096—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating by using electrical resistance heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4541—Gas separation or purification devices adapted for specific applications for portable use, e.g. gas masks

Definitions

  • Dust masks may be worn in various situations, such as in city environments where the ambient air could be dangerous to the user, or work environments, where the user may be exposed to dangerous particles in the air. Dust masks may be worn over the user’s nose and mouth to ensure that the user does not inhale hazardous materials. In some cases, dust masks may comprise exhalation valves.
  • aspects of the disclosure may include embodiments of a moisture absorbing device for use with a face mask, the device comprising a jar operable to be attached to a face mask, the jar comprising a moisture absorbing material operable to absorb the moisture in a user’s exhaled breath; a movable top cover; and a base with holes allowing a user’s exhaled breath to enter the jar; and a heating base comprising one or more dock operable to receive the jar, wherein the heating base is operable to heat the moisture absorbing material in the jar to evaporate the moisture from the moisture absorbing material, allowing the jar to be reused on a mask, and wherein the movable top cover is operable to open when the jar is placed on the heating base, to allow evaporated moisture to leave the jar.
  • the moisture absorbing material comprises silica gel beads. In some embodiments, the moisture absorbing material comprises color changing silica gel beads.
  • the top cover of the jar comprises a window for viewing the color of the moisture absorbing material.
  • the jar further comprises a transparent isolating layer operable to contain the moisture absorbing material within the jar when the top cover is open, and wherein the isolating layer comprises holes to allow moisture to evaporate from the moisture absorbing material.
  • the jar further comprises a rod attached to the top cover, wherein when the jar is placed on the heating base, the rod is pushed upward, opening the top cover.
  • the jar is operable to be attached over an exhalation valve in the mask.
  • the base of the jar comprises a thermal conductive ceramic base. In some embodiments, the heating base comprises a plurality of docks for heating multiple jars.
  • Additional aspects of the disclosure may include embodiments of a method of removing moisture from a face mask, the method comprising providing a jar containing moisture absorbing material; attaching the jar over an exhalation valve in a mask; absorbing, by the jar, the moisture from a user’s exhaled breath; indicating, by the jar, when the moisture absorbing material is saturated; removing the jar from the mask, when the moisture absorbing material is saturated; placing the jar onto a heating base, wherein a top cover of the jar opens when the jar is placed on the heating base; heating the jar, by the heating base, to evaporate the moisture from the moisture absorbing material; indicating, by the jar, when the moisture absorbing material is dry; removing the jar from the heating base; and attaching the jar over an exhalation valve in a mask.
  • the moisture absorbing material comprises color changing silica gel beads.
  • indicating when the moisture absorbing material is saturated comprises a color change of the moisture absorbing material, and wherein indicating when the moisture absorbing material is dry comprises a color change of the moisture absorbing material.
  • the jar comprises a window to allow a user to view the color change.
  • the silica gel beads are orange when dry and blue when saturated.
  • the mask comprises a port, and wherein attaching the jar to the mask comprises screwing the jar into the port on the mask. In some embodiments, the steps of the method are repeated as necessary by a user, wherein the jar may be reused multiple times.
  • aspects of the disclosure may include embodiments of a method of removing moisture from a face mask, the method comprising providing a jar containing moisture absorbing silica gel beads; attaching the jar over an exhalation valve in a mask; absorbing, by the silica gel beads, the moisture from a user’s exhaled breath; indicating, by a color change in the silica gels beads, when the silica gel beads are saturated; removing the jar from the mask, when the silica gel beads are saturated; placing the jar onto a heating base, wherein a top cover of the jar opens when the jar is placed on the heating base; heating the jar, by the heating base, to evaporate the moisture from the silica gel beads; indicating, by a color change in the silica gels beads, when the silica gel beads are dry; removing the jar from the heating base; and attaching the jar over an exhalation valve in a mask.
  • the jar comprises a window to allow a user to view the color change.
  • the silica gel beads are orange when dry and blue when saturated.
  • the steps of the method are repeated as necessary by a user, wherein the jar may be reused multiple times.
  • FIG. 1 illustrates a mask with a moisture absorbing jar attached to the mask according to an embodiment of the disclosure
  • FIG. 2 illustrates an exploded view of a moisture absorbing jar according to an embodiment of the disclosure
  • FIG. 3 illustrates another exploded view of a moisture absorbing jar according to an embodiment of the disclosure
  • FIGS. 4A-4C illustrate a moisture absorbing device comprising a moisture absorbing jar and a heating base according to an embodiment of the disclosure.
  • FIG. 5 illustrates a heating process for a jar 110 containing moisture absorbing material according to an embodiment of the disclosure.
  • phrases “in one embodiment, ” “according to one embodiment, ” and the like generally mean that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present invention, and may be included in more than one embodiment of the present invention (importantly, such phrases do not necessarily refer to the same embodiment) ;
  • ком ⁇ онент or feature may, ” “can, ” “could, ” “should, ” “would, ” “preferably, ” “possibly, ” “typically, ” “optionally, ” “for example, ” “often, ” or “might” (or other such language) be included or have a characteristic, that particular component or feature is not required to be included or to have the characteristic.
  • Such component or feature may be optionally included in some embodiments, or it may be excluded.
  • Embodiments of the disclosure include systems and methods for reducing moisture inside a face mask.
  • a moisture absorbing system may comprise a jar or canister operable to attach to a face mask, particularly a dust mask.
  • the jar may contain a moisture absorbing material, such as silica gel beads.
  • the jar may be attached to the mask over an exhalation point, or valve, allowing the user’s exhaled breath to enter the jar.
  • the moisture absorbing material may absorb the moisture from the exhaled breath.
  • the moisture content inside the mask may be kept at a comfortable level, to reduce breathing resistance and uncomfortable elevated temperatures.
  • the jar may be rechargeable, or reusable.
  • the jar When the moisture absorbing material has been saturated with moisture, the jar may be removed from the mask and placed on a heating base.
  • the heating base may heat the jar to evaporate the moisture from the moisture absorbing material. Then, once the moisture has been evaporated, the jar may be reattached to a face mask.
  • the moisture absorbing material may change color when it is saturated or dry, so that a user may visually observe when the jar should be removed from the mask and “recharged, ” or when the jar has been sufficiently dried and can be reattached to a mask.
  • a moisture absorbing material may extend the life of a face mask. If a user is uncomfortable when wearing the mask, the user may discard the mask before it has been exhausted, thus wasting some of the lifetime of the mask. Additionally, users may be more likely to wear a mask, and thus protect themselves from harmful ambient air, if the mask is comfortable. When the moisture is not removed from the mask, the moisture may build up in the filtering material of the mask, increasing the breathing resistance through the material.
  • a mask 100 may comprise a non-woven fabric 102, operable to filter dust and/or chemicals from the air.
  • the mask 100 may be held on the user’s face by one or more straps 104.
  • the mask 100 may comprise an exhalation port 112, and a moisture absorbing jar (which may also be called a canister or container) 110.
  • the jar 110 may attach to the exhalation port 112, and may contain a moisture absorbing material.
  • the jar 110 may comprise threads that screw into the port 112.
  • the jar 110 may comprise a thermal conductive ceramic 204.
  • the thermal conductive ceramic 204 may allow for heat transfer from the interior of the mask 100 into the jar 110.
  • the thermal conductive ceramic 204 may comprise a material with high heat transfer efficiency and rapid heat conduction speed, thereby ensuring uniform thermal conductivity.
  • the thermal conductive ceramic 204 may form the base of the jar 110, and may comprise holes 205 to allow the exhaled breath of a user to enter the jar 110.
  • the jar 110 may comprise a container 206 operable to hold the moisture absorbing material.
  • the moisture absorbing material may be held within the container 206 by an isolating layer (or cover) 208.
  • the isolating layer 208 may comprise one or more holes 209 operable to allow fluid to flow through the layer 208, wherein the holes 209 are small enough to contain the moisture absorbing material.
  • the jar 110 may also comprise a top cover 210 that comprises a window 212, wherein the window 212 allows a user to view the contents of the jar 110.
  • FIG. 3 shows another exploded view of the jar 110.
  • the moisture absorbing material 300 may comprise a beaded material.
  • the moisture absorbing material 300 may comprise silica gel beads.
  • the silica gel beads 300 may comprise color changing silica gel beads, wherein the beads comprise a first color when the beads are dry and a second color when the beads are saturated with moisture.
  • the first color may comprise orange and the second color may comprise blue.
  • a user may view the color change of the moisture absorbing material 300 via the window 212 of the top cover 210.
  • the isolating layer 208 may comprise a transparent material, so that the moisture absorbing material 300 may be viewed through the isolating layer 208.
  • the top cover 210 may comprise an opaque material, other than the window 212, so that the moisture absorbing material may only be viewed through the window 212.
  • the top cover 210 may comprise a transparent material.
  • the size of the window 212 may vary.
  • the ceramic base 204 may be secured to the base 230 of the container 206, and the isolating layer 208 may be secured to the top 232 of the container 206.
  • the ceramic base 204 and the isolating layer 208 may seal the container 206, with the holes 205 and 209 allowing fluid flow through the container 206, but retaining the moisture absorbing material 300 within the container 206.
  • the top cover 210 may comprise a rod 220 that may extend through the jar 110 when assembled.
  • the rod 220 may fit through an opening 222 in the isolating layer 208 as well as an opening 224 in the ceramic base 204.
  • the rod 220 may protrude from the ceramic base 204.
  • the moisture absorbing device 400 comprises a heating base 402 and one or more jars 110.
  • the moisture absorbing material 300 contained within the jar (s) 110 may comprise a reusable material, wherein, when the moisture absorbing material 300 is heated, the moisture may evaporate from the moisture absorbing material 300, allowing the jar 110 to be reused on a mask.
  • the heating base 402 may comprise one or more docks 404 shaped to fit a jar 110. When a jar 110 is placed in the dock 404, the rod 220 of the top cover 210 (as shown in FIG. 3) may be pressed upward by the dock 404, opening the top cover 210.
  • the heating base 402 may heat the jar 110, thereby heating the moisture absorbing material 300 in the jar 110.
  • the heating may cause the moisture absorbed in the material 300 to evaporate and leave the jar 110 through the opening created between the container 206 and the top cover 210.
  • the material 300 may change color.
  • FIG. 4A shows three jars 110, two that have not been heated and one that has been heated.
  • the jar 110 on the heating base 402 may be a first color, indicated dry material 300, while the other two jars 110 may have been used on masks and therefore are a second color, indicating that they are saturated with moisture.
  • the color of the moisture absorbing material 300 may be viewed through the window 212 of the top cover 100.
  • the heating base 402 may comprise an electrical plug 403 or power source.
  • the heating base 402 may also comprise a power button or switch.
  • the heat base 402 may be activated when a jar 110 in placed in one of the docks 404.
  • the heating base 402 may heat the entire base 402 when activated, while in other embodiments, each of the docks 404 may be heated separately.
  • FIGS. 4B and 4C show other views of the heating base 402 in use.
  • a user is placing a used jar 110 onto the heating base 402.
  • the top cover 210 opens.
  • the first two jars 410 have been heated to dry the moisture absorbing material 300, and are the first (dry) color.
  • the third jar 412 still contains moisture within the moisture absorbing material 300, and is the second (saturated) color.
  • FIG. 5 illustrates a heating process for a jar 110 containing moisture absorbing material 300.
  • the jar has been used on a mask to absorb the moisture in a user’s exhaled breath, and the moisture absorbing material 300 is the second (saturated) color. In some embodiments, the saturated color may be blue.
  • the top cover 210 is closed, and the rod 220 is protruding from the base of the jar 110.
  • the jar has been inserted into the heating base (as shown in FIGS. 4A-4C) , and the top cover 210 move upward when the rod 220 contacts the dock of the heating base, allowing moisture to dissipate from the moisture absorbing material 300.
  • the jar 110 is being heated and the moisture 420 is evaporating from the moisture absorbing material 300.
  • the moisture absorbing material 300 may also be changing color to the first (dry) color. In some embodiments, the dry color may be orange. In some embodiments, while the moisture is evaporating, the moisture absorbing material 300 may be a mixture of the first color and the second color.
  • the moisture absorbing material 300 may be dried, and the first (dry) color.
  • the jar 110 may be removed from the heating base, and the top cover 210 may close.
  • the jar 110 may then be attached to a port on a mask (as shown in FIG. 1) to be reused. The process may be repeated as many times as needed.
  • a user may use the color changing indications to know when a jar need to be heated, and when a jar is done heating.
  • Some embodiments of the disclosure may comprise a method of removing moisture from a face mask.
  • the method may comprise providing a jar containing moisture absorbing material, and attaching the jar over an exhalation valve in a mask. While the jar is attached the mask, the method may comprise absorbing, by the jar, the moisture from a user’s exhaled breath. After the jar has been used on the mask to absorb moisture from the exhaled breath of a user, the method may comprise indicating, by the jar, when the moisture absorbing material is saturated, and removing the jar from the mask, when the moisture absorbing material is saturated.
  • the method may comprise placing the jar onto a heating base, wherein a top cover of the jar opens when the jar is placed on the heating base, and heating the jar, by the heating base, to evaporate the moisture from the moisture absorbing material.
  • the method may comprise indicating, by the jar, when the moisture absorbing material is dry, and removing the jar from the heating base. If the user wishes to continue using the jar on a face mask, the method may comprise attaching the jar over an exhalation valve in a mask.
  • the moisture absorbing material may comprise color changing silica gel beads.
  • indicating when the moisture absorbing material is saturated may comprise a color change of the moisture absorbing material
  • indicating when the moisture absorbing material is dry may comprise a color change of the moisture absorbing material.
  • the jar may comprise a window to allow a user to view the color change.
  • the silica gel beads may be orange when dry and blue when saturated.
  • the steps of the method are repeated as necessary by a user, wherein the jar may be reused multiple times.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

L'invention concerne des systèmes et des procédés pour réduire l'humidité à l'intérieur d'un masque facial. Un système d'absorption d'humidité peut comprendre un pot (110) conçu pour être fixé à un masque facial (100). Le pot (110) peut contenir un matériau d'absorption d'humidité (300), tel que des billes de gel de silice. Le pot (110) peut être fixé au masque (100) sur un point d'expiration, permettant à l'air expiré de utilisateur d'entrer dans le pot (110), le matériau d'absorption d'humidité (300) pouvant absorber l'humidité de l'air expiré. Le pot (110) peut être rechargeable ou réutilisable. Lorsque le matériau d'absorption d'humidité (300) a été saturé en humidité, le pot (110) peut être retiré du masque (100) et chauffé sur une base chauffante (402) pour évaporer l'humidité du matériau d'absorption d'humidité (300). Le matériau d'absorption d'humidité (300) peut changer de couleur lorsque ce dernier est saturé ou sec.
PCT/CN2015/091829 2015-10-13 2015-10-13 Dispositif d'absorption d'humidité de gel de silice réutilisable conçu pour réduire l'humidité à l'intérieur d'un masque WO2017063137A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201580085278.6A CN108472518B (zh) 2015-10-13 2015-10-13 设计成减少面罩内的湿气的可再用型硅胶湿气吸收装置
PCT/CN2015/091829 WO2017063137A1 (fr) 2015-10-13 2015-10-13 Dispositif d'absorption d'humidité de gel de silice réutilisable conçu pour réduire l'humidité à l'intérieur d'un masque

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/091829 WO2017063137A1 (fr) 2015-10-13 2015-10-13 Dispositif d'absorption d'humidité de gel de silice réutilisable conçu pour réduire l'humidité à l'intérieur d'un masque

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WO2017063137A1 true WO2017063137A1 (fr) 2017-04-20

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PCT/CN2015/091829 WO2017063137A1 (fr) 2015-10-13 2015-10-13 Dispositif d'absorption d'humidité de gel de silice réutilisable conçu pour réduire l'humidité à l'intérieur d'un masque

Country Status (2)

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CN (1) CN108472518B (fr)
WO (1) WO2017063137A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019100285A1 (fr) * 2017-11-23 2019-05-31 Honeywell International Inc. Système et procédé d'absorption d'humidité à l'intérieur d'un masque facial
WO2019199810A1 (fr) * 2018-04-09 2019-10-17 Torbenson Steve Gordon Appareils de masque et approche
US10835704B1 (en) 2019-05-15 2020-11-17 Applied Research Associates, Inc. Reusable respiratory protection device
US11478668B1 (en) 2015-06-05 2022-10-25 Rz Industries, Llc Mask apparatuses and approach

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064876A (en) * 1976-01-30 1977-12-27 Stanley I. Wolf Air-pollution filter and face mask
WO1998058702A1 (fr) * 1997-06-20 1998-12-30 Stout Kathleen K Masque pour temps froid, comportant un embout buccal obturateur constitue d'une matiere hygroscopique poreuse a courant traversant direct
JP2002204921A (ja) * 2001-01-12 2002-07-23 Hitachi Plant Eng & Constr Co Ltd 呼気除湿器
JP2014161568A (ja) * 2013-02-26 2014-09-08 Goldwin Inc 呼気除湿マスク

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6216693B1 (en) * 1995-01-20 2001-04-17 3M Innovative Properties Company Respirator having a compressible press fir filter element
US6892725B2 (en) * 2002-04-26 2005-05-17 Mine Safety Appliances Company Protective hoods and neck seals for use therein
US20070283964A1 (en) * 2006-05-25 2007-12-13 William Gorman Reusable exhalation valve & mouthpiece for use with filtering face mask
US10182946B2 (en) * 2009-12-24 2019-01-22 Liberman Distributing And Manufacturing Co. Advanced fabric technology and filters
KR200459674Y1 (ko) * 2010-05-13 2012-04-06 한국원자력연구원 삼중수소수 오염공기의 정화호흡기
CN102091608A (zh) * 2010-12-30 2011-06-15 竺金笑 一种日用异味和水汽吸附剂的再生方法及再生盒
CN203072971U (zh) * 2012-12-22 2013-07-24 浙江财经学院 水汽干燥口罩
CN203379521U (zh) * 2013-05-10 2014-01-08 厦门大学 便携式空气净化过滤器滤芯

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064876A (en) * 1976-01-30 1977-12-27 Stanley I. Wolf Air-pollution filter and face mask
WO1998058702A1 (fr) * 1997-06-20 1998-12-30 Stout Kathleen K Masque pour temps froid, comportant un embout buccal obturateur constitue d'une matiere hygroscopique poreuse a courant traversant direct
JP2002204921A (ja) * 2001-01-12 2002-07-23 Hitachi Plant Eng & Constr Co Ltd 呼気除湿器
JP2014161568A (ja) * 2013-02-26 2014-09-08 Goldwin Inc 呼気除湿マスク

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11478668B1 (en) 2015-06-05 2022-10-25 Rz Industries, Llc Mask apparatuses and approach
WO2019100285A1 (fr) * 2017-11-23 2019-05-31 Honeywell International Inc. Système et procédé d'absorption d'humidité à l'intérieur d'un masque facial
US11723421B2 (en) 2017-11-23 2023-08-15 Honeywell International Inc. System and method for absorbing moisture within a face mask
WO2019199810A1 (fr) * 2018-04-09 2019-10-17 Torbenson Steve Gordon Appareils de masque et approche
US10835704B1 (en) 2019-05-15 2020-11-17 Applied Research Associates, Inc. Reusable respiratory protection device

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CN108472518B (zh) 2021-05-11
CN108472518A (zh) 2018-08-31

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