EP4096461B1 - Masque respiratoire - Google Patents

Masque respiratoire Download PDF

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Publication number
EP4096461B1
EP4096461B1 EP21701769.8A EP21701769A EP4096461B1 EP 4096461 B1 EP4096461 B1 EP 4096461B1 EP 21701769 A EP21701769 A EP 21701769A EP 4096461 B1 EP4096461 B1 EP 4096461B1
Authority
EP
European Patent Office
Prior art keywords
mask according
fold
respirator mask
assembly
respirator
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP21701769.8A
Other languages
German (de)
English (en)
Other versions
EP4096461A1 (fr
Inventor
Tobias Kreitschmann
Monika Hofmann
Helena Angebrandt
Frederic SCHUSS
Martin Wolf
Wolf Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uvex Arbeitsschutz GmbH
Original Assignee
Uvex Arbeitsschutz GmbH
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 Uvex Arbeitsschutz GmbH filed Critical Uvex Arbeitsschutz GmbH
Publication of EP4096461A1 publication Critical patent/EP4096461A1/fr
Application granted granted Critical
Publication of EP4096461B1 publication Critical patent/EP4096461B1/fr
Active legal-status Critical Current
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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
    • 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
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • 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

Definitions

  • the invention relates to a respiratory protection mask, in particular a respiratory protection half mask, for filtering the breathing air of a wearer.
  • the respiratory protection mask is used in particular in the field of occupational safety. Other areas of application are possible.
  • Respiratory protection masks are generally known from the prior art. In the case of respirator masks with outer mask baskets in particular, the problem repeatedly arises that the mask baskets are damaged during transport and/or storage, such as being dented. Large-volume packaging can reduce or prevent damage to the mask baskets, but require a lot of space for storage and transport. Respiratory protection masks of this type have been sold by the applicant in various designs for some time.
  • the DE 699 21 660 T2 discloses a foldable respirator with an exhalation valve having an opening that facilitates exhaled air to escape from a mask interior.
  • An exhalation filter element is located on the mask in the exhalation stream.
  • a disadvantage of this known breathing mask is that its inhalation and exhalation resistance is comparatively large.
  • a half-mask dust mask comprising a rigid wall which may be made of a non-woven fabric.
  • a valve which may be a one-way or two-way valve, is arranged in a central portion of the wall.
  • a folded edge can extend around the central area.
  • a device for collecting water vapor which may comprise a filter membrane covering the central area and delimiting an additional chamber. This filter membrane can be made of fabric and is designed to be deformable, for example.
  • U.S. 2,378,929 A describes a respirator that includes a rigid main frame and a filter element attached thereto. Fold lines are formed in the filter element, so that it is designed as a bellows and can be folded together. An exhalation valve is arranged at the front of the filter element.
  • a filter mask which comprises a mask body on which two air inlet devices and one air outlet device are arranged on the outside.
  • Each air intake device has a filter element.
  • the air outlet device can have a one-way valve.
  • the object of the invention is to overcome the problems of the prior art.
  • a respiratory protection mask should be provided which on the one hand is particularly easy to transport or store and on the other hand is extremely user-friendly.
  • the respirator should also have a particularly advantageous volume-to-surface ratio, resulting in a very efficiently designed respirator.
  • the core of the invention lies in the at least one folding arrangement arranged upstream of the at least one inhalation valve arrangement.
  • the respiratory protection mask In the functional or wearing position of the at least one folding arrangement, the respiratory protection mask has an extremely large surface or filter area, which results in a particularly functionally reliable and powerful respiratory protection mask.
  • the respirator mask In contrast, in the folded transport or storage position, the respirator mask has a particularly small volume, which has an advantageous effect on storage and transport.
  • the packing density is very good. Comparatively small packages are sufficient for the respiratory protection mask in the transport position of the at least one folding arrangement, which is sustainable. It is advantageous if the at least one folding arrangement is symmetrical with respect to at least one plane of symmetry. It is preferably non-detachably connected to the mask base body.
  • the at least one inhalation valve arrangement results in a respirator that has a particularly low inhalation resistance.
  • It is preferably designed as a one-way valve arrangement.
  • Such a respiratory protection mask offers a wearer a very high level of wearing comfort. It allows easy natural inhalation.
  • the mask base body can preferably be transferred, in particular foldable, between a three-dimensional wearing position and a flat transport position.
  • the filter material of the at least one folded arrangement is favorably air-permeable.
  • it is a fleece material.
  • a composite material can also be used as a filter material.
  • the filter material preferably allows breathing directly through it. It filters the breathing air and is preferably particle-filtering.
  • the inhalation resistance can preferably be controlled or influenced by the filter material, such as its surface, permeability or the like. It is expedient if the at least one folding arrangement is as large as possible in the unfolded functional position or has as large a surface as possible.
  • the at least one fixing means is, for example, a cord, a band, a hood or the like. It is preferably formed from an elastic material such as rubber.
  • respirator mask is designed symmetrically.
  • the mask base body is preferably formed from a filter material, in particular an air-permeable one, such as a fleece material.
  • a composite material can also be used as a filter material.
  • the filter material preferably allows breathing directly through it. It filters the breathing air and is preferably particle-filtering.
  • the filter material of the mask body differs, for example, from the filter material of the at least one folding arrangement. Alternatively, the filter material of the mask body and the at least one folding arrangement are identical.
  • the configuration according to dependent claim 3 leads again to a particularly large surface or filter area of the respirator when the at least one folding arrangement is unfolded.
  • the at least one folding arrangement preferably has opposing walls or wall regions, which are then arranged or run at a distance from one another at least in regions, forming the at least one interior space.
  • the at least one interior space is, for example, at least partially angular in cross section perpendicular to its height, such as triangular, quadrangular, pentagonal or the like. It is, for example, rectangular or trapezoidal in cross-section perpendicular to its height, at least in some areas. Corner areas are rounded, for example. Walls or wall areas are curved, for example.
  • the at least one interior space is at least partially circular, oval, elliptical or the like, for example in cross section perpendicular to its height. Combinations are possible.
  • the at least one folding arrangement then has a corresponding contour.
  • the at least one folding line according to dependent claim 5 preferably allows the at least one folding arrangement to be brought into its functional position and/or transport position in a particularly simple and reliable manner. It preferably also enables a secure movement or transfer of the at least one folding arrangement between its functional position and transport position. It is expedient if the at least one fold line has at least one straight and/or curved section. It preferably forms a predetermined bending point.
  • the embodiment according to dependent claim 6 leads to a respiratory protection mask which has a particularly large surface or filter area in the functional position of the at least one folding arrangement and/or an extremely small volume in the transport position of the at least one folding arrangement, which is efficient. It is expedient if the at least one folding arrangement has between one and five, preferably between two and four, folding lines. It is expedient if fold lines extend at different heights or levels, at least in the functional position of the respective folding arrangement, and thus preferably have different distances from the mask base body.
  • the at least one fold line according to dependent claim 7 enables the at least one folding arrangement to be folded in and out in a particularly uniform manner. Conveniently, it is endless.
  • An embodiment according to dependent claim 8 again allows a particularly simple and functionally reliable folding and/or unfolding of the at least one folding arrangement.
  • the at least one folding arrangement In the region of the at least one fold line, the at least one folding arrangement has a reduced thickness, for example at least in regions.
  • the at least one folding arrangement is not stiffened there, or is stiffened to a lesser extent, in particular thermally, at least in regions.
  • the bellows according to dependent claim 9 in its functional position, moves towards its ceiling or outwards, i.e. in its height, in particular in its longitudinal direction and/or transverse direction, tapers. If the bellows in the functional position has fold lines at different heights or levels, their overall length preferably decreases with increasing distance to a foot or bottom of this bellows or outwards. These fold lines or sections thereof preferably extend parallel to one another, at least in certain areas.
  • the respirator according to dependent claim 10 is able, for example, to force or move, in particular to press, the at least one folding arrangement into its functional position.
  • the at least one fold-out body according to dependent claim 11 is formed, for example, from foam, rubber or the like.
  • it is associated with the at least one folding arrangement in the compressed state and is capable of unfolding the at least one folding arrangement when it is decompressed.
  • at least one fold-out body is arranged in a respective folding arrangement. The decompression can be done, for example, by unpacking the respirator or triggered manually.
  • the at least one spring body according to dependent claim 12 is made of plastic, metal or the like, for example.
  • it is like a clasp.
  • it is associated with the at least one folding arrangement in the deformed state and is capable of unfolding the at least one folding arrangement when it is demolded or returned to its original state.
  • at least one spring body is arranged in a folding arrangement in each case.
  • the demolding can, for example by unpacking the respiratory protection mask or triggered separately manually.
  • the configuration according to dependent claim 13 enables the at least one folding arrangement to be held securely or stably in its functional position. Unintentional folding in or out of the at least one folding arrangement is made more difficult or can be prevented in this way.
  • the at least one unfolding device and unfolding holding device are identical, for example. Alternatively, these are, for example, separate devices.
  • the at least one exhalation valve arrangement according to dependent claim 14 allows particularly easy exhalation, which is particularly user-friendly and is perceived as natural. It is designed, for example, as a one-way valve arrangement.
  • the at least one inhalation valve arrangement and/or exhalation valve arrangement is/are at least partially replaceable or removable, for example by unscrewing, pulling off, releasing a snap-in connection, releasing a plug-in connection or the like. This is particularly sustainable.
  • the respirator mask preferably has exactly two inhalation valve arrangements, which are advantageously arranged at a distance from one another, preferably on the side. It is advantageous if the exhalation valve arrangement is arranged centrally or between the inhalation valve arrangements.
  • the mask base body has at least one sealing element on the inside, preferably adjacent to its free edge, at least in regions, which is formed, for example, by a foam body or a lip.
  • a respirator half mask 1 shown in the figures comprises a mask base body 2 and a headband 3 arranged on the mask base body 2 for the local fixing of the respirator half mask 1 on a head 4 of a wearer. How figure 2 shows, the respirator half-mask 1 is symmetrical with respect to a median plane 5.
  • the mask main body 2 has a base part 6 and a nose part 7 arranged on the base part 6 and a nose part 7 arranged on the base part 6 Chin piece 8 up.
  • the base part 6 has an upper edge area 9 and a lower edge area 10 which runs opposite to the upper edge area 9 and is arranged at a distance therefrom.
  • the nose part 7 adjoins the upper edge area 9
  • the chin part 8 adjoins the lower edge area 10 .
  • the nose part 7 and chin part 8 are firmly connected to the base part 6 and can be folded relative to it. In a transport position, the nose part 7 and chin part 8 extend parallel to the base part 6, with the nose part 7 or chin part 8 lying flat on the back of the base part 6 and the other part forming an outer part. In a wearing position, the mask base body 2 is unfolded and three-dimensional, which allows a tight connection with a face of the wearer.
  • the respirator half-mask 1 also includes two inhalation valve assemblies 11 which are spaced apart from the center plane 5 and are of identical design.
  • the inhalation valve assemblies 11 are arranged separately from one another in/on the base part 6 .
  • Each inhalation valve arrangement 11 is associated with a circular inhalation opening 12 arranged in the mask base body 2 .
  • Each inhalation valve assembly 11 has an inhalation valve seat body 13 defining a circular inhalation valve seat opening 14 and disposed on the base 6 adjacent the respective inhalation opening 12 .
  • Each inhalation valve seat opening 14 extends adjacent to the respective inhalation opening 12 in the base 6 when the respective inhalation valve assembly 11 is assembled.
  • Each inhalation opening 12 and the associated inhalation valve seat opening 14 extend parallel and adjacent to one another.
  • Each inhalation valve seat body 13 has an inhalation support structure 15 disposed in or adjacent to the inhalation valve seat opening 14 of that inhalation valve seat body 13 .
  • Each inhale support structure 15 has an outer annular ridge and a plurality of inhale support ridges 16 extending radially outward toward the annular ridge from a center and angularly equidistant from one another.
  • Each inhalation support structure 15 is arranged on the inside or outside of the mask base body 2 .
  • each inhalation valve assembly 11 includes a flexible inhalation valve membrane 17 which is circular and is located at its center to the associated inhalation support structure 15 . Otherwise, each inhalation valve membrane 17 is movable between a closed position and a release position. Each inhalation valve membrane 17 is arranged downstream of the associated inhalation support structure 15 in the inhalation flow direction 18 .
  • each inhalation valve membrane 17 rests against the associated inhalation support structure 15, in particular on the ring web and the inhalation support webs 16, and closes the respective inhalation valve seat opening 14 in a completely fluid-tight manner. In particular, exhalation via the respective inhalation valve seat arrangement 11 is then completely prevented.
  • the respective inhalation valve membrane 17 When inhaling, the respective inhalation valve membrane 17 is at least partially lifted from the respective inhalation support structure 15 at a distance from its fixing point in the inhalation flow direction 18, so that the respective inhalation valve seat opening 14 is at least partially released and allows ambient air to flow through the respective inhalation valve seat opening 14 and inhalation opening 12 and to the nose and mouth of the wearer, respectively.
  • the respective inhalation valve membrane 17 automatically returns to its closed position.
  • Each inhalation support structure 15 is followed by an inner threaded bushing 19 of the respective inhalation valve seat body 13, which has an external thread 20 and delimits an inhalation flow channel.
  • Each external thread 20 is complementary to an internal thread 21 which is formed on the inside of an outer bushing of the respective inhalation valve seat body 13 .
  • Each inhalation support structure 15 can be replaced together with the inhalation valve membrane 17 by unscrewing or twisting off.
  • Each outer sleeve is fixed to the base part 6 in a non-detachable manner.
  • Each inhalation valve seat body 13 consists of several parts.
  • a central exhalation valve assembly 22 having an exhalation valve seat body which spatially defines or has a circular exhalation valve seat opening and is fixed to the base 6 .
  • the exhalation valve arrangement 22 is assigned to a circular exhalation opening arranged in the mask base body 2 .
  • the exhalation valve seat opening extends adjacent to the exhalation opening in the base part 6. They extend parallel and adjacent to one another.
  • the exhalation valve seat body has an exhalation support structure disposed in or adjacent to the exhalation valve seat opening of the exhalation valve seat body.
  • the exhalation support structure has an exterior Annular ridge and a plurality of exhalation support ridges extending radially outward from a center toward the annular ridge and angularly equidistant from one another.
  • the exhalation valve assembly 22 includes a flexible exhalation valve membrane that is circular and is located at its center to the exhalation support structure. Otherwise, the exhalation valve membrane is movable between a closed position and a release position. The exhalation valve membrane is arranged downstream of the exhalation support structure in the exhalation flow direction.
  • the exhalation valve membrane rests on the exhalation support structure, in particular on the ring web and the exhalation support webs, and closes the exhalation valve seat opening in a completely fluid-tight manner. In particular, inhalation via the exhalation valve seat arrangement 22 is then completely prevented.
  • the exhalation valve arrangement 22 has a housing body 23 which, when the exhalation valve arrangement 22 is in the assembled state, is arranged on the outside in relation to the mask base body 2 and is firmly connected to the exhalation valve seat body and/or base part 6 .
  • the housing body 23 has a roof spaced apart from the exhalation valve seat body and covering the exhalation valve seat opening.
  • the exhalation valve membrane When exhaling, the exhalation valve membrane is at least partially lifted from the exhalation support structure at a distance from its fixing point, so that the exhalation valve seat opening is at least partially released and respiratory air can flow through the exhalation valve seat opening and exhalation opening and can flow outwards into the environment.
  • the Areas of the exhalation valve membrane then lie against the roof on the inside. The roof prevents further displacement of the exhalation valve membrane.
  • the exhalation valve membrane automatically returns to its closed position.
  • a folding basket 24 is arranged in front of each inhalation valve arrangement 11 in the inhalation flow direction 18 .
  • Each folding basket 24 is arranged on the outside or the front of the base part 6 and completely covers the associated inhalation valve arrangement 11 there.
  • Each folding basket 24 has a plate-like, essentially trapezoidal bottom 25 which faces the base part 6 or its outside and adjoins the respective valve seat body 13 tightly on the outside on the peripheral side.
  • a corresponding circular connection opening 26 is formed in each floor 25 .
  • Each folding basket 24 also has a cover 27 which is tightly connected to the associated base 25 at the edge and delimits an interior space 28 with it.
  • This connection is formed, for example, by a material connection line, such as by welding and/or gluing.
  • Each ceiling 27 is substantially trapezoidal in plan view.
  • each blanket 27 there are three endless fold lines 29, namely an outer fold line 29a, a middle fold line 29b and an inner fold line 29c.
  • the fold lines 29 each have an essentially identical distance from one another and are closed in a circumferential direction 30 of the respective folding basket 24 .
  • Each fold line 29 has an essentially trapezoidal contour overall when viewed from above.
  • Each outer fold line 29a is longer than each middle fold line 29b, which in turn is longer than each inner fold line 29c.
  • each ceiling 27 is then shell-like.
  • Each folding basket 24 tapers in the direction of its ceiling 27, ie in its height H, in the area of the fold lines 29 essentially in a step-like manner.
  • Each outer fold line 29a has a smaller distance to the adjacent bottom 25 than each middle fold line 29b.
  • Each middle fold line 29b has a smaller distance to the adjacent bottom 25 than each inner fold line 29c.
  • respirator half mask 1 When the respirator half mask 1 is worn as intended, ambient air permeates the respective cover 27 when inhaled and enters the respective interior space 28. This then flows via the respective inhalation valve arrangement 11, as explained, to the mouth and/or nose of the wearer.
  • each folding basket 24 In the flat transport position, the floor 25 and the associated cover 27 extend adjacent to one another and can rest against one another at least in certain areas.
  • the folding lines 29 of each folding basket 24 are essentially at an identical height H starting from the base 25 or have an essentially identical distance from this base 25. The height H of the interior space 28 is reduced.

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

Claims (15)

  1. Masque respiratoire, en particulier un demi-masque respiratoire, pour filtrer l'air respiré par un porteur, comprenant
    a) un corps de base de masque (2) pour couvrir un nez et une bouche du porteur,
    b) au moins un ensemble de soupape d'inspiration (11) disposé sur le corps de base de masque (2), et
    c) au moins un ensemble de pliage (24),
    caractérisé en ce que l'ensemble de pliage (24)
    i. est disposé en amont dudit au moins un ensemble de soupape d'inspiration (11) dans la direction d'écoulement d'inspiration (18),
    ii. est disposé sur le corps de base de masque (2),
    iii. peut être déplacé entre une position fonctionnelle déployée et une position de transport repliée, et
    iv. est formé au moins partiellement d'un matériau filtrant.
  2. Masque respiratoire selon la revendication 1, caractérisé en ce que le corps de base de masque (2) est formé d'un matériau filtrant.
  3. Masque respiratoire selon la revendication 1 ou 2, caractérisé en ce que ledit au moins un ensemble de pliage (24) délimite spatialement au moins un espace intérieur (28) dans sa position fonctionnelle dépliée.
  4. Masque respiratoire selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un ensemble de pliage (24) présente, dans sa position de transport, une hauteur réduite (H) dans la direction d'écoulement de l'inspiration (18) par rapport à sa position fonctionnelle.
  5. Masque respiratoire selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un ensemble de pliage (24) comprend au moins une ligne de pliage (29), de préférence plusieurs lignes de pliage (29a, 29b, 29c), pour le pliage contrôlé de celui-ci.
  6. Masque respiratoire selon la revendication 5, caractérisé en ce que ladite au moins une ligne de pliage (29) s'étend au moins par zones parallèlement ou essentiellement parallèlement à un fond (25) dudit au moins un ensemble de pliage (24).
  7. Masque respiratoire selon la revendication 5 ou 6, caractérisé en ce que ladite au moins une ligne de pliage (29) est fermée dans la direction circonférentielle (30) dudit au moins un ensemble de pliage (24).
  8. Masque respiratoire selon l'une quelconque des revendications 5 à 7, caractérisé en ce que ledit au moins un ensemble de pliage (24) présente une rigidité réduite dans la zone de sa au moins une ligne de pliage (29).
  9. Masque respiratoire selon l'une quelconque des revendications 5 à 8, caractérisé en ce que ledit au moins un ensemble de pliage (24) est réalisé sous forme de soufflet.
  10. Masque respiratoire selon l'une quelconque des revendications précédentes, caractérisé par au moins un dispositif de déploiement associé audit au moins un ensemble de pliage (24) pour le dépliage de celui-ci.
  11. Masque respiratoire selon la revendication 10, caractérisé en ce que ledit au moins un dispositif de déploiement présente au moins un corps de déploiement à volume variable.
  12. Masque respiratoire selon la revendication 10, caractérisé en ce que ledit au moins un dispositif de déploiement présente au moins un corps élastique.
  13. Masque respiratoire selon l'une quelconque des revendications précédentes, caractérisé par au moins un dispositif de maintien de déploiement associé audit au moins un ensemble de pliage (24) pour maintenir l'au moins un ensemble de pliage (24) dans sa position fonctionnelle.
  14. Masque respiratoire selon l'une quelconque des revendications précédentes, caractérisé par au moins un ensemble de soupape d'expiration (22).
  15. Masque respiratoire selon l'une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un ensemble de soupape d'inspiration (11) présente une unité de soupape interchangeable (15, 17).
EP21701769.8A 2020-01-31 2021-01-22 Masque respiratoire Active EP4096461B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020201217.2A DE102020201217B3 (de) 2020-01-31 2020-01-31 Atemschutz-Maske
PCT/EP2021/051501 WO2021151801A1 (fr) 2020-01-31 2021-01-22 Masque respiratoire

Publications (2)

Publication Number Publication Date
EP4096461A1 EP4096461A1 (fr) 2022-12-07
EP4096461B1 true EP4096461B1 (fr) 2023-06-21

Family

ID=74236200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21701769.8A Active EP4096461B1 (fr) 2020-01-31 2021-01-22 Masque respiratoire

Country Status (3)

Country Link
EP (1) EP4096461B1 (fr)
DE (1) DE102020201217B3 (fr)
WO (1) WO2021151801A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2378929A (en) * 1942-06-29 1945-06-26 American Optical Corp Respirator
US6584976B2 (en) * 1998-07-24 2003-07-01 3M Innovative Properties Company Face mask that has a filtered exhalation valve
ITUA20163418A1 (it) * 2016-05-13 2017-11-13 Roberto Borghini Maschera antipolvere
KR20180015411A (ko) * 2016-08-03 2018-02-13 주식회사 아일리스 휴대용 공기정화 마스크

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WO2021151801A1 (fr) 2021-08-05
DE102020201217B3 (de) 2021-06-02
EP4096461A1 (fr) 2022-12-07

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