WO2013055131A2 - Masque nasal - Google Patents

Masque nasal Download PDF

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Publication number
WO2013055131A2
WO2013055131A2 PCT/KR2012/008277 KR2012008277W WO2013055131A2 WO 2013055131 A2 WO2013055131 A2 WO 2013055131A2 KR 2012008277 W KR2012008277 W KR 2012008277W WO 2013055131 A2 WO2013055131 A2 WO 2013055131A2
Authority
WO
WIPO (PCT)
Prior art keywords
nose
mask
wrinkles
horizontal
mask body
Prior art date
Application number
PCT/KR2012/008277
Other languages
English (en)
Korean (ko)
Other versions
WO2013055131A4 (fr
WO2013055131A3 (fr
Inventor
김영호
김현정
Original Assignee
Kim Young Ho
Kim Hyun Jeong
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
Priority claimed from KR1020110143801A external-priority patent/KR101248351B1/ko
Application filed by Kim Young Ho, Kim Hyun Jeong filed Critical Kim Young Ho
Priority to CN201280049881.5A priority Critical patent/CN103857442A/zh
Publication of WO2013055131A2 publication Critical patent/WO2013055131A2/fr
Publication of WO2013055131A3 publication Critical patent/WO2013055131A3/fr
Publication of WO2013055131A4 publication Critical patent/WO2013055131A4/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1115—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a horizontal pleated pocket
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/06—Nose filters

Definitions

  • the present invention relates to a nose mask that covers only the nose and the periphery of the nose, except for the mouth, and forms and maintains a three-dimensional space by a horizontal and vertical complex pleat provided in the filter and a bag-shaped structure composed of the main body and the inner surface filter.
  • the present invention can freely speak without covering the mouth, to form a bag-shaped structure by the main body and the inner filter can enlarge the filtering area, and effectively block the gap between the nose and the bottom of the eye, before wearing
  • it is related to a nose mask that can comfortably breathe by exerting high and wide spatial expansion force and rigid shape retention by the horizontal and vertical complex folds formed in the filter. It is a multifunctional nose mask that can be used as a face mask by removing the filter from the mask body.
  • masks having various shapes and structures are used to prevent influx of harmful substances such as pollen, yellow dust, and bacteria through the mouth or nose.
  • Commonly known masks are for dust and smoke prevention and consist of a structure that blocks the nose and mouth at the same time.
  • Typical types include a flat mask and an exhaust valve that can expand the area covering the face by folding the horizontal wrinkles.
  • a cup-shaped cover mask is mentioned.
  • a nose mask covering only the nose is required, but like a normal mask, a cover-type nose mask covering only the nose covers the nose in a plane, so that no space for breathing is secured, and the three-dimensional shape of the nose is not completely covered. There was a problem that can not perform the function as a mask.
  • the nose masks that block only the nostrils are frustrating to breathe, and their utilization is low, and the nose masks embedded with a separate member made of a hard material are complicated by the additional members, and the manufacturing cost is high. Storage is not easy due to the three-dimensional shape, if the shape is damaged by pressing or when stored, there was a problem that can not be used again.
  • the problem to be solved by the present invention is, firstly, to open the mouth so that you can speak freely, taking a structure covering only the nose and the nose around, second, to block the gap and to enlarge the filtering area to expand the filter area Third, it provides a nose mask with complex wrinkles that can be folded into a flat shape before wearing, but can form a high and wide three-dimensional space without additional parts when worn, and can maintain the formed three-dimensional solid by itself. It is.
  • Another object of the present invention is to provide a nose mask that can be easily switched to a face mask when a face mask function is required to prevent inhalation of foreign substances such as warmth or gas, if necessary.
  • Still another object of the present invention is to provide a method for manufacturing a nose mask in which the manufacturing process is simple, in which the three-dimensional space can be made only in the shape of the mask itself without the aid of an auxiliary device.
  • the present invention provides a mask body covering only the nose and around the nose of the wearer, a first inner pen connected to the mask body and surrounding the bottom of the wearer's nose to form a bag-shaped structure, and the A wear strap connected to the mask body and the first inner surface filter, wherein the mask body and the first inner filter include horizontal pleat portions having at least one horizontal pleat formed therein; And vertical wrinkles formed by at least two vertical wrinkles formed by bending the horizontal wrinkles again in a direction crossing the horizontal wrinkles, wherein the horizontal vertical wrinkles are combined to form a composite wrinkle part that exhibits synergy effect.
  • a nose mask Provide a nose mask.
  • the mask body and the first inner surface filter may form only the vertical wrinkles without forming the horizontal wrinkles and the composite wrinkles.
  • it may further include a second inner surface filter connected to the upper end of the mask body and the nose insertion hole of the wearer is formed.
  • the second inner surface filter may include a horizontal pleat formed with at least one horizontal pleat.
  • the second inner surface filter is connected to the upper end of the mask body and covers the bottom of the nose to prevent moisture contact around the nose and to block the gaps under the eyes.
  • the first inner surface filter is detachably formed on the mask body, and may be used as a nose mask and then used as a face mask spread as necessary.
  • the nose mask according to the present invention has a complex wrinkle combined with horizontal wrinkles and vertical wrinkles, and has a flat shape before wearing, and when worn, a high and wide three-dimensional space is formed by the characteristics of the composite wrinkles combining horizontal wrinkles and vertical wrinkles. And support themselves to make breathing comfortable.
  • the filtering area can be enlarged by the first inner surface filter which forms a bag structure and adheres to the lower part of the nose and can effectively block the gap under the nose.
  • the second inner surface filter is formed by extending the upper end of the mask or bonded to the upper end of the mask to block the gap between the eyes and the moisture contact around the nose.
  • the nose mask according to the present invention can exert a function of easily forming a three-dimensional space only by a complex wrinkle consisting of a bag-like structure and horizontal wrinkles and vertical wrinkles, the manufacturing process is simple, and the manufacturing cost is low, it is suitable for practical use.
  • the nose mask according to the present invention is configured to be detachably attached to the first inner surface filter, and may be used as a nose mask or a face mask with the front unfolded as needed, and thus has high utilization.
  • the second inner surface filter may be provided with a nose insertion hole and one or more horizontal wrinkles to block facial moisture when used as a facial mask.
  • FIG. 1 is a wearing of the nose mask having a compound wrinkles in accordance with an embodiment of the present invention.
  • FIG. 2 is a perspective view of a nose mask having only vertical wrinkles according to an embodiment of the present invention.
  • FIG 3 is a perspective view and a partially enlarged view of a nose mask body in which the horizontal wrinkles of the horizontal wrinkles are symmetrically bent in accordance with an embodiment of the present invention.
  • FIG. 4 is a perspective view seen from the back of the nose mask of FIG. 3.
  • FIG. 5 is a side view of the nose mask of FIG. 3.
  • FIG. 6 is a plan view of the nose mask of FIG. 3.
  • FIG. 7 is a side view illustrating a three-dimensional shape of a nose mask in which a bending direction of a horizontal wrinkle portion is lowered in a mask body according to an embodiment of the present invention.
  • FIG. 8 is a rear view of the nose mask of FIG. 7.
  • FIG. 9 is a rear perspective view of the nose mask deformed into a detachable form according to an embodiment of the present invention.
  • FIG. 10 is a rear perspective view of the nose mask showing an example in which the detachable means of the inner filter is modified according to an exemplary embodiment of the present invention.
  • FIG. 11 is a side view illustrating a wearing state in which the nose mask of FIGS. 9 and 10 is unfolded and used as a face mask.
  • FIG. 12 is a rear view of a nose mask having a second inner surface filter having a nose insertion hole in accordance with an embodiment of the present invention.
  • FIG. 13 is a left side view of FIG. 12.
  • FIG. 14 is a rear view of the nose mask when the nose mask with the second inner filter having the nose insertion hole functions as a face mask in accordance with one embodiment of the present invention.
  • the nose mask according to the present invention comprises a mask body covering the nose of the wearer and around the nose; A first inner surface filter connected to the mask body and surrounding the underside of the wearer to form a bag-shaped structure; And a wearing strap connected to the mask body and the first inner surface filter, wherein the mask body and the inner surface filter include: a horizontal pleat formed with at least one horizontal pleat; And a vertical wrinkle portion having at least two vertical wrinkles formed by bending the horizontal wrinkles again in a direction crossing the horizontal wrinkle portions, wherein the vertical wrinkle portion and the horizontal wrinkle portion are combined to exert a synergy effect.
  • wrinkles To form wrinkles;
  • a junction is provided at an edge at which the first inner surface filter and the main body are coupled to provide a nose mask for a face mask.
  • the mask body may be any mask material used in the art, and preferably a natural material, and has a filter function.
  • the mask body includes a composite wrinkle portion formed by combining a horizontal wrinkle portion and a vertical wrinkle portion, thereby forming and maintaining a three-dimensional space.
  • the mask body extends downward to surround the ball around the nose under the wearer's nose, is connected to the first inner filter to form a bag-shaped structure, and forms a three-dimensional space such as a tent around the nose when worn.
  • the lower end of the mask can be formed to lengthen the length of the pocket formed under the nose, in this case it is possible to breathe more comfort because the three-dimensional space is further enlarged.
  • the upper surface of the mask can be extended to be used as a second inner filter having a nose insertion hole.
  • the second inner surface filter may further extend the length to have one or more horizontal pleats, thereby acting as an inner surface filter of the face mask that can block facial moisture when worn with the face mask.
  • the size of the mask body can be manufactured in a size that can cover only the nose and the area around the nose, and can be manufactured in a size that can vary in design and functionality as the ear gradually extends along the ball around the nose, and elastic material is inserted at the edge. It can also manufacture.
  • the nose mask according to the present invention includes a first inner filter which is connected to the mask body to form a bag-shaped structure surrounding the bottom of the nose.
  • the first inner filter is formed integrally with the mask body to form a pleat, and then folded back so that the lower end of the mask body reaches the nose opening, thereby forming a bag-like structure integrally with the body, or independently crimping the filter and then masking It can be formed into a coupling type that connects to the main body.
  • the first inner surface filter has an effect of enlarging the filtering area by the bag-like structure, it is in close contact with the nose by the force of the wear strap pulling the inner filter can exert a function to increase the gap blocking effect around the base of the nose.
  • the first inner surface filter is provided with a compound wrinkle part, thereby securing a larger three-dimensional space around the nose.
  • the horizontal wrinkle portion may be omitted, and only the vertical wrinkle portion may be formed.
  • the first inner surface filter may be used as a face mask covering the mouth by providing a fastener, for example, one or more snap buttons, a Velcro fastener, or the like on the left and right edges coupled to the main body.
  • a fastener for example, one or more snap buttons, a Velcro fastener, or the like on the left and right edges coupled to the main body.
  • a second inner surface filter connected to the upper end of the mask body or adhered separately and provided with a nose insertion hole and covering from the upper end of the main body to the bottom of the nose may be further provided.
  • the second inner surface filter may be used as an inner filter having one or more pleats extending the length downward.
  • the upper end of the mask body may extend only about 1 ⁇ 2cm, fold back and then may be used as an inner filter.
  • a flexible bending wire on the inner upper end of the mask body used as the inner filter, it can be closed close to the nose and the like when wearing, to block the gap between the eyes.
  • the bending wire may be attached or inserted at a point directly above the nose insertion hole of the second inner surface filter, and may be bent in close contact with the nose and the like to enhance the blocking of the gap under the eye.
  • the bending wire is not attached to the main body and attached to the inner surface filter, the bending function of the main body is not limited and the adhesion effect can be enhanced.
  • the upper, left and right sides and the lower end of the inner surface filter may be combined with the main body in whole or in part and may be fixed or detachably bonded.
  • the bonding method may apply means such as sealing, velcro, buttons, and the like.
  • the wearing strap functions to close the mask body and the inner filter to the nose and the upper and lower left and right portions of the nose and to mount the mask body on the wearer's face and to fix it.
  • the lower connection of the wearing strap can be connected to the left and right end points of the upper inner filter in case of using the adhesive part (fastener) when used as a face mask.
  • Wear straps can be worn on the ears, hung or tied behind the head and neck, or attached to the end of the band with Velcro tape or loops.
  • the wearing strap may be formed by extending the mask body and the inner surface filter horizontally, or by forming an ear insertion hole in the mask body.
  • Wear straps can also be used as elastic materials.
  • the mask body includes a compound wrinkle part, and the compound wrinkle part includes one or more horizontal wrinkles formed by overlapping the mask body horizontally and vertical wrinkles formed by bending the horizontal wrinkles vertically again.
  • the cross fold of the composite folds is a method in which the horizontal folds are bent vertically again at the intersections with the vertical folds to be combined with the vertical folds. On the contrary, the vertical folds are bent horizontally again at the intersections and the horizontal folds May be combined with
  • the complex pleats may be composed of symmetrical horizontal pleats and symmetrical vertical pleats, or may be composed of asymmetrical horizontal pleats and symmetrical vertical pleats.
  • the peculiar function of the complex wrinkle part is to exhibit a unique synergy function that cannot be achieved by only one of the horizontal wrinkle part and the vertical wrinkle part to create a high and wide three-dimensional space, and have a supporting force to firmly support the formed three-dimensional shape. will be. Therefore, the created conformation does not deform in any way before being refolded by hand.
  • the mask body includes a horizontal pleat formed with at least one horizontal pleat. When two or more horizontal folds are formed, they may be bent in the same direction or may be bent in a symmetrical direction.
  • the bending direction may be directed toward the bottom or the top of the mask body.
  • the width of the horizontal wrinkles may be uniformly formed throughout the entire mask body, or may be non-uniform, for example, in the direction of gradually narrowing and widening the width of the horizontal wrinkles.
  • a plurality of the horizontal wrinkles are formed in the mask body, and the more the wider the width of the three-dimensional space is formed.
  • it can be formed in the center only if necessary.
  • the nose mask according to the present invention includes a vertical wrinkle portion in which at least two vertical wrinkles are symmetrically formed in the mask body and / or the inner filter.
  • the vertical wrinkles are formed in a direction intersecting with the horizontal wrinkles, preferably in a direction perpendicular to each other, and the vertical wrinkles formed on the mask body are preferably formed so that the central portion of the mask body protrudes out from the wearer's face.
  • the composite pleat consisting of the vertical pleats and the horizontal pleats supports each other to form a three-dimensional space as it serves as a pillar, the size of the three-dimensional space formed according to the width and spacing of the composite pleats can be adjusted.
  • the vertical wrinkles can be adjusted as necessary, the width between the wrinkles, and the larger the number of symmetrical vertical wrinkles to create a wider space It can be secured.
  • the longitudinal folds may be symmetrically formed in plural numbers. As a result, a space may be formed three-dimensionally when worn.
  • the nose mask 1 illustrated in FIGS. 1 to 6 includes a mask body 10, an inner filter 30, and a wearing strap 20, and a horizontal wrinkle part 110.
  • the composite wrinkled portion in which the vertical wrinkled portion 120 intersect with each other is formed (FIG. 1), or only the vertical wrinkled portion 120 is formed (FIG. 2). Therefore, as the mask is worn, it is tensioned by the wearing strap 20, and the horizontal wrinkle part 110 and the vertical wrinkle part 120 interact with each other to form a three-dimensional space.
  • the nose mask 1 is present in a planar shape before wearing, and when worn as shown in FIGS. 1, 2, 3, 4, and 5, the vertical wrinkle part 120 cooperates with the wearer's nose, or horizontally.
  • the three-dimensional space is formed by the compound wrinkles formed by the wrinkle part 110 and the vertical wrinkle part 120, and this three-dimensional space is maintained.
  • the directions of the horizontal wrinkles 111, 112, and 113 may be symmetrically formed.
  • the three-dimensional space to be formed may be formed without being oriented in either of the up and down directions.
  • the widths of the symmetrical corrugations 111, 112, and 113 can be appropriately adjusted as needed, and the narrower and larger the width of the corrugations is, the more the process goes into, but a more detailed three-dimensional shape can be manufactured.
  • the composite wrinkle part may be formed in a shape in which the horizontal wrinkle part 110 in which the horizontal wrinkles are formed is bent vertically again.
  • the nose mask 1 according to the present invention may be bent in the same direction as shown in FIG. 7.
  • the direction in which the horizontal wrinkles 111, 112, and 113 are bent may be directed toward the lower portion of the mask body 10 according to the face shape of the wearer.
  • the nose mask 1 according to the present invention can adjust the shape of the three-dimensional space formed according to the width of the horizontal wrinkles, the position of formation, the number of wrinkles, but with the number of the vertical wrinkles, the width, the position of formation of the three-dimensional space
  • the shape can also be adjusted.
  • the inner filter 30 may be detachably attached to the mask body by the adhesive parts 40 and 40-1. 1 to 8 may be used as a nose mask, and when away from the mask body, it may be used as a face mask as shown in FIG.
  • the adhesive part is provided in the mask body and a pair of inner surface filters at positions corresponding to the mask body, respectively, to fix the inner surface filter 30 to the mask body.
  • the adhesive part may be formed in one or more pairs on both sides of the inner surface filter.
  • the nose mask 1 includes a mask body, a first inner filter 30-1, and a second inner filter 30-2 having a nose insertion hole 70 formed therein.
  • the second inner filter may block the gap under the eyes and block moisture contact around the nose (FIGS. 12 and 13).
  • the second inner filter 30-3 when the nose mask 1 is unfolded and the first inner filter 30-1 functions as a face mask, the second inner filter 30-3 is further extended, It functions as an inner filter that can completely remove facial moisture, thereby completely blocking the wearer's nose and / or face from the outside air (FIG. 14).
  • the nose insertion hole 70-1 may be formed in various shapes.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Otolaryngology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

La présente invention se rapporte à un masque nasal qui peut également être utilisé comme masque facial et pour lequel il est possible de parler librement puisque le masque ne recouvre pas la bouche, une zone de filtration pouvant être agrandie par formation d'une structure de type poche par un corps principal et un filtre interne et il est possible de remplir de manière efficace l'espace situé sous le nez et l'espace situé sous les yeux en faisant adhérer fermement le filtre interne. En outre, le masque est plié à plat avant d'être porté et affiche automatiquement une force qui s'étend dans un espace grand et vaste ainsi qu'une force qui maintient une forme ferme par un ensemble de plis formés horizontalement et verticalement au niveau du corps principal et du filtre interne lorsque le masque est porté, ce qui permet de respirer facilement.
PCT/KR2012/008277 2011-10-13 2012-10-11 Masque nasal WO2013055131A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280049881.5A CN103857442A (zh) 2011-10-13 2012-10-11 鼻罩

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020110104466 2011-10-13
KR10-2011-0104466 2011-10-13
KR10-2011-0143801 2011-12-27
KR1020110143801A KR101248351B1 (ko) 2011-12-27 2011-12-27 코 마스크

Publications (3)

Publication Number Publication Date
WO2013055131A2 true WO2013055131A2 (fr) 2013-04-18
WO2013055131A3 WO2013055131A3 (fr) 2013-06-13
WO2013055131A4 WO2013055131A4 (fr) 2013-08-01

Family

ID=48082663

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2012/008277 WO2013055131A2 (fr) 2011-10-13 2012-10-11 Masque nasal

Country Status (2)

Country Link
CN (1) CN103857442A (fr)
WO (1) WO2013055131A2 (fr)

Cited By (9)

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WO2015031066A3 (fr) * 2013-08-29 2015-06-25 3M Innovative Properties Company Masque respiratoire filtrant ayant un corps de masque pourvu de pinces
US20160263339A1 (en) * 2013-10-29 2016-09-15 Koninklijke Philips N.V. Convertible patient interface device
JP2018193656A (ja) * 2017-05-22 2018-12-06 白元アース株式会社 衛生用マスク
US10702666B2 (en) 2013-12-20 2020-07-07 Koninklijke Philips N.V. Customizable facial sealing segment for respiratory device and method of customizing
TWI725923B (zh) * 2020-10-13 2021-04-21 謝東宏 口罩
CN112933450A (zh) * 2021-02-07 2021-06-11 大同新成欣荣新材料科技有限公司 一种包含活性炭的呼吸防护装置
IT202000022546A1 (it) * 2020-09-24 2022-03-24 Gianluca Bagliani Dispositivo di protezione individuale per il viso, richiudibile, multiuso, composito
WO2022223950A1 (fr) * 2021-04-21 2022-10-27 Logicor (US) Ltd Masque facial pliable et procédés de fabrication et d'utilisation
USD1004769S1 (en) 2021-01-21 2023-11-14 Slip IP Holdings Pty Ltd. Face covering

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US9615612B2 (en) * 2013-08-29 2017-04-11 3M Innovative Properties Company Filtering face-piece respirator with stiffening member integral with filtering structure
CN106666872B (zh) * 2014-12-28 2018-12-21 扬州市生态科技新城润业中小企业服务中心有限公司 立体折叠口罩
CN109222282B (zh) * 2014-12-28 2021-01-15 林先霞 一种口罩
CN104606803A (zh) * 2015-02-10 2015-05-13 章迅 即贴型鼻罩
CN110681130A (zh) * 2018-07-08 2020-01-14 大连预见科技有限公司 一种游泳鼻罩及其鼻罩的制造方法
KR102151887B1 (ko) * 2019-11-26 2020-09-03 주식회사 나루씨이엠 자외선 차단 마스크
EP3915650A1 (fr) * 2020-05-28 2021-12-01 Eurofilters Holding N.V. Masque de protection respiratoire
TWI811945B (zh) * 2022-01-06 2023-08-11 陳怡君 鼻罩

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CN105473192B (zh) * 2013-08-29 2019-09-06 3M创新有限公司 具有省缝的面罩主体的过滤式面罩呼吸器
WO2015031066A3 (fr) * 2013-08-29 2015-06-25 3M Innovative Properties Company Masque respiratoire filtrant ayant un corps de masque pourvu de pinces
US9603395B2 (en) 2013-08-29 2017-03-28 3M Innovative Properties Company Filtering face-piece respirator having darted mask body
RU2638629C2 (ru) * 2013-08-29 2017-12-14 3М Инновейтив Пропертиз Компани Респиратор в виде фильтрующей лицевой маски, содержащий основу маски с вытачкой
US10238158B2 (en) 2013-08-29 2019-03-26 3M Innovative Properties Company Filtering face-piece respirator having darted mask body
US20160263339A1 (en) * 2013-10-29 2016-09-15 Koninklijke Philips N.V. Convertible patient interface device
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JP2018193656A (ja) * 2017-05-22 2018-12-06 白元アース株式会社 衛生用マスク
IT202000022546A1 (it) * 2020-09-24 2022-03-24 Gianluca Bagliani Dispositivo di protezione individuale per il viso, richiudibile, multiuso, composito
WO2022064312A1 (fr) * 2020-09-24 2022-03-31 Bagliani Gianluca Dispositif composite pouvant être fermé, polyvalent pour protection individuelle de visage
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