Classifications

• • 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
  • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
• • 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
  • A62B18/003—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 having means for creating a fresh air curtain
• • 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
  • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
  • A61L2209/10—Apparatus features
  • A61L2209/14—Filtering means

Definitions

• the present invention relates to the field of devices for diffusing purified air.
• the present application relates to a dynamic mask for diffusing purified air to a subject evolving in an environment of polluted ambient air.
• the mask of the invention consists of a central flow of purified air and a plurality of lateral flows of purified air. The central flow is opposite the subject's respiratory tract.
• Air pollution has become a growing concern in industrialized countries. According to the Air and Rational Use of Energy Law (Lepage Law and Laure Law) of December 30, 1996, air pollution is defined as "any introduction by man, directly or indirectly, into the atmosphere and confined spaces, of substances having harmful consequences likely to endanger human health, to harm biological resources and ecosystems, to influence climate change, to deteriorate material goods and / or to cause odor nuisance ”.
• WHO World Health Organization
• the WHO therefore recommends particle concentration levels below 10 mg / m 3 .
• some agglomerations record extremely high particle concentration levels. For example, the average concentration in Chinese cities is 54 mg / m 3 .
• application CN105757824 describes an air diffusion device placed around the neck of an individual and comprising a system for filtering ambient air.
• a device which offers, first of all, a high purity of air in the dynamic mask, which attests to the good quality of the filtration, but also which offers a purity of air important when entering the respiratory tract.
• a technical problem that the invention solves is to allow the purified air to reach the respiratory tract of the user without being again polluted by the ambient air surrounding the face of this user.
• the invention provides a protective air mask made up of at least two streams of purified air, a central stream whose flow rate provides breathing comfort for the subject, and at least one stream which frames, or surrounds, or simply protects, whatever its configuration, the central flow.
• the different flows, central and protective have different characteristics (speed, flow, orientations ). It’s not just the arbitrary parts of a flow partitioned by separators like the flow of a fan passing through a grid.
• the invention therefore relates to a dynamic mask for diffusing purified air to a subject capable of being placed in an environment of polluted ambient air.
• this dynamic mask is configured to deliver purified air to a subject likely to be placed in an environment of polluted ambient air.
• Said mask consists of a main stream of purified air and at least one lateral stream of purified air, preferably a plurality of lateral streams of purified air, said main stream of purified air being facing the respiratory tract of the subject.
• the mask according to the invention delivers purified air to the subject, this purified air being directed directly to the respiratory tract of the subject, Le. nose and / or mouth.
• the air flows delivered are more than 90% purified, preferably more than 99%, relative to the polluted ambient air. According to one embodiment, the air flows delivered are more than 85% purified, preferably more than 95%. According to a embodiment, the air flows supplied are purified with a HE PA type filter, in particular HEPA E10 or HEPA E11. According to one embodiment, the air flows supplied are purified to approximately 95% with a HEPA El i filter.
• the air flow entering the respiratory tract of the user is more than 70% purified relative to the polluted ambient air, preferably more than 75%, very preferably more than 80%, and even more preferably more than 85%.
• the protective flow has a higher flow rate than that of the central flow, and thus constitutes a barrier, similar to an air curtain, which prevents ambient air from coming to mix with the central flow.
• the mask according to the invention delivers purified air to the subject, this purified air being protected from the polluted ambient air.
• the dynamic air diffusion mask is therefore a set of air flows. These flows being moving air, they are dynamic.
• the flow assembly constitutes at the same time a means for delivering purified air opposite the subject's respiratory tract and a means for isolating the polluted ambient air.
• the invention also relates to a device for developing a dynamic mask for the diffusion of purified air as described above.
• this device makes it possible to develop a dynamic mask configured to deliver purified air as described above.
• This device includes:
• an air diffuser 1 comprising a body 10, said body 10 comprising a central opening 111 closed by a medium 1111 for diffusing and homogenizing the flow main purified air and a plurality of side openings 112, on the periphery of the central opening 111; said openings being through the body 10, an air hose 2,
• the media 1111 for diffusing and homogenizing the main stream of purified air is a membrane.
• the air filter 4 is positioned in the air pipe 2 upstream or downstream of the pump 3. According to one embodiment, the air filter 4 is configured so that the air supplied to the media diffusion and homogenization of an air stream 1111, preferably at the membrane, and at the side openings is purified at least 90% relative to the ambient air.
• the air filter 4 retains one or more pollutants from the ambient air which passes through said air filter 4; preferably the air filter 4 retains one or more pollutants chosen from fine particles, bacteria, fungi, viruses, dust and volatile molecules targeted for their odor or their toxicity.
• the air filter 4 can be made up of several independent elements specific to this or that pollutant.
• the air diffuser 1 further comprises an air tube end piece, capable of being engaged on the underside of the body 10 to relay at least one stream of purified ambient air coming from the air tube 2, towards the central and peripheral or lateral openings.
• the air diffuser 1 is configured so that the lateral or peripheral flows protect the main flow of purified air from the polluted ambient air located near the respiratory tract of the user.
• the air hose delivers an air flow of 5 to 100 L / min at the level of the diffuser.
• the central flow between the membrane and the respiratory tract of the user at a flow rate between 4 to 90 L / min.
• the peripheral flow or the lateral flows which surround or frame or laterally delimit the central flow has a flow rate between 5 and 70 L / min.
• the percentage of the flow rate of the peripheral flow (or lateral flows) over the central flow is from 20 to 80%, preferably from 30 to 60%.
• the air diffuser 1 is compact and placed under the subject's chin in advance with respect to said chin, so as to generate no movement impediment of the subject's head or neck and to direct the propagation of air flow to the subject's airways.
• the air diffuser 1 is compact and placed under the subject's nose, above the upper lip, so as to not cause any discomfort in movement of the subject's head and to direct the propagation of the flows air to the subject's nose.
• the device of the invention further comprises a device for controlling the air flow at the outlet of the pump 3, preferably a device for controlling the air flow rate optionally comprising a pressure sensor of the air flow, an air flow speed sensor and / or a pollution detection sensor; said sensor (s) being optionally located near the subject's face.
• the speed sensor makes it possible to regulate the air flow as a function of the turbulences of the ambient air and / or of the movements of the subject such as for example when the subject is walking, running, biking, etc. .
• the speed sensor makes it possible to regulate the efficiency of the diffuser and / or of the device of the invention.
• the device of the invention further comprises one or more pollution detection sensor (s).
• the pollution sensor makes it possible to regulate the flow rate of the air flow as a function of the level of pollution detected, and / or to adapt the efficiency of the device of the invention.
• the device of the invention further comprises one or more location systems.
• the air pressure and / or speed sensor is located in front of the subject's respiratory tract, preferably to detect the inspiration and / or expiration phases of the subject.
• the air pressure and / or speed sensor makes it possible to regulate the flow rate of the air flow as a function of the respiratory phase of the subject.
• the device for controlling the flow rate of the air flow makes it possible to modulate the flow of purified air leaving the pump 3.
• the diffuser or the device further comprises at least one protective screen, preferably to protect the air flow from the strong turbulence of the polluted ambient air when the diffuser or the device is used. during disturbed weather conditions and / or to maintain and / or increase the efficiency of the diffuser or device.
• the broadcaster or the device is associated with at least one means of communication and / or a leisure device, preferably the means of communication is chosen from radio, telephone and digital means of communication, and / or the leisure device is chosen from audio and / or video players.
• the communication means and / or the leisure device associated with the device allows the subject to breathe a flow of purified air while using said communication means and / or the audio and / or video device.
• the means of communication is a portable telephone.
• Ambient air concerns air directly accessible to an individual without this air having previously been subjected to a physical and / or chemical treatment.
• ambient air designate the ambient air having no not been purified and / or filtered.
• polyluted ambient air designate the ambient air which has not been purified and / or filtered and which comprises one or more pollutants such as, for example, chosen from fine particles, bacteria, fungi, viruses, dust and volatile molecules targeted for their odor or toxicity.
• Near a subject's airway refers to an element without contact with the subject, preferably without contact with the airway orifices and / or their proximity.
• the distance to the airways is between 1 and 12 cm. In one embodiment, the distance to the respiratory tract is between 3 and 8 cm.
• “Purified air” designates the air obtained after purification and / or filtration of the ambient air, preferably via the diffuser and / or the device of the invention.
• 90% purified air is air in which the concentration of pollutants has been reduced by 90% compared to polluted ambient air. Thus, if the polluted ambient air contains 50 mg / m 3 in particles, 90% purified air contains 5 mg / m 3 in particles. 95% purified air contains 2.5 mg / m 3 of particles.
• Air diffuser concerns any element capable of delivering an air flow.
• the air diffuser is a portable element, that is to say an element designed to be able to be easily transported by an individual.
• the term "portable” includes elements designed to be easily transported by an individual without the use of his hands.
• Helmet concerns any synthetic headdress protecting the head in whole or in part.
• the term “helmet” includes caps covering the entire scalp such as, for example, protective helmets; and headdresses partially covering the scalp such as headphones.
• the term “helmet” designates caps comprising or consisting of metal, leather or synthetic elements such as plastic.
• “Compact” concerns any device whose constituent elements are spatially close to each other.
• Distal weather conditions concerns any climatic situation in a given place and place for which the ambient air flow is strong troubled and / or has turbulence.
• the term “disturbed weather conditions” includes climatic situations of snowy, misty, smoke, stormy, and / or rainy episodes.
• Diffuser body relates to a solid mechanical element delimited by at least two faces, an upper face and a lower face, capable of delivering an air flow.
• the body of the diffuser is a shell as defined above.
• “Leisure device” relates to any device allowing a subject to relax.
• the terms “leisure device” include audio players such as MP3 players, CD players, cassette players and / or video players such as CD players, DVD players, video games on console or mobile phone.
• Protective screen relates to a physical element making it possible to protect from the ambient air the flow of purified and diffused air towards the face of a subject.
• Air hose fitting relates to one end of an air hose, which is integrated into another mechanical element.
• next to the respiratory tract designates the position of a flow directed towards the respiratory tract, Le. nose alone, mouth alone, or nose and mouth together.
• the origin of this flow is preferably "Near the respiratory tract”.
• Air filter concerns a system capable of retaining at least one pollutant from the ambient air contained in an incoming air flow and providing a purified outgoing air flow.
• Air flow concerns any movement of an air mass.
• G expression “lateral flows of purified air” relates to any movement of one or more air masses downstream of a filtration system.
• the expression “side streams of purified air” relates to any movement of one or more air masses surrounding and protecting the movement and / or the nature of another mass of previously purified air (“central flow of purified air ”also called “Central flow” or “main flow in central position”).
• the lateral air flows 6 make it possible to protect the central air flow 5, that is to say that the lateral air flows 6 make it possible to avoid and / or limit contamination of the central air flow 5 by the ambient air.
• the lateral flows 6 form a cone.
• each lateral flow forms an angle of 30 to 100 ° relative to the main air flow 5.
• Air mask designates a mass of air located on the face of a subject.
• “Dynamic air diffusion mask” relates to an air mask as defined above, in which the air mass comes from a stream of purified air which is continuously renewed.
• Membrane concerns a porous substance of thin thickness delimiting two media. According to the invention, the membrane is capable of diffusing and homogenizing an air flow.
• Pulp relates to a device for suction and delivery of a fluid, preferably air.
• Ambient air turbulence concerns any heterogeneity of an ambient air mass.
• Air hose concerns any hose able to transport and / or allow an air flow to pass.
• FIG. 1 is a diagram showing a dynamic mask of diffusion of purified air on a subject likely to be placed in an environment of polluted ambient air.
• the dynamic air diffusion mask comprises a main purified air flow 5 and lateral purified air flows 6.
• these air flows are delivered by an air diffuser 1 placed near the subject's respiratory tract. .
• FIG. 2 is a diagram showing an air diffuser 1, in section.
• the air diffuser 1 comprises a body 10, an upper face 11, a lower face 12, and an air hose nozzle 13.
• Said upper face 11 comprises a central opening 111 in which is housed a medium for diffusing and homogenizing the air flow in the form of a membrane 1111, and a plurality of lateral openings 112 on either side of the central opening 111.
• a pipe end piece air 13 is engaged in the interior of the diffuser body 10 and includes a first opening 131 capable of communicating a central air flow towards said membrane 1111.
• the air hose nozzle 13 also includes a second opening 132 suitable for communicating an air flow in the direction of the lateral openings 112.
• FIG. 3 is a diagram showing a device for developing and installing a dynamic mask for the diffusion of purified air comprising an air pump 3, an air hose 2 provided with an air filter 4 and an air diffuser 1 as illustrated in FIG. 2.
• the ambient air 8 is sucked by the pump 3 and filtered via the filter 4.
• the air flow thus filtered 7 is then moved to the air diffuser 1 as described above.
• the filtered air flow 7 is divided into several flows of different characteristics: a central air flow 5 and lateral air flows 6 protecting the central air flow 5.
• Figure 4 is a photograph of the air diffuser 1.
• 1111 - Diffusion and homogenization media for air flow preferably diffusion and homogenization membrane for air flow
• the present invention relates to a dynamic mask for the diffusion of purified air, that is to say a dynamic mask configured to deliver purified air.
• a first object of the invention is to provide a stream of purified air to a subject, preferably to a subject likely to be in a polluted environment.
• the dynamic mask for the diffusion of purified air comprises or consists of a main air flow 5 (or central air flow) and one or more air flows lateral 6.
• the lateral air flows 6 are offset and distributed around the central air flow 5 in order to protect the central air flow from the ambient air 8.
• the lateral flows 6 form a cone.
• each lateral flow forms an angle of 30 to 100 ° relative to the main air flow 5.
• the central air flow 5 and / or the lateral air flows 6 are delivered by an air diffuser 1, preferably placed near the subject's respiratory tract including the mouth and / or the subject's nose.
• the air diffuser ballast capable of receiving an air hose 2 said air diffuser 1 comprises a body 10 comprising an upper face 11 and a lower face 12, and a nozzle air hose 13.
• the air diffuser 1 and / or the body of the diffuser 10 comprises at least one central opening and at least one lateral opening, preferably two lateral openings, on its upper face 11 and / or its lower face 12
• the central opening is located in the center of the upper face 11 of the diffuser and / or of its lower face 12.
• the central opening 111 is in the form of a disc .
• the central opening 111 is in oval or ovoid form.
• the lateral openings 112 are located around the central opening 111.
• the air diffuser 1 comprises a central opening 111 and lateral openings 112 on its upper face 11 and / or its lower face 12; said side openings 112 being distributed around the central opening.
• the body of the diffuser 10 and / or the diffuser 1 comprises a medium for diffusing and homogenizing an air flow 1111, preferably a membrane 1111.
• the body of the diffuser 10 and / or the diffuser 1 includes media for diffusing and homogenizing an air flow 1111, preferably a membrane 1111, housed in the central opening 111.
• the air diffuser 1 is characterized in that:
• the upper face 11 comprises a central opening 111 in which is housed a medium for diffusing and homogenizing an air flow 1111, preferably a membrane 1111;
• the upper face 11 comprises a plurality of lateral openings 112, on either side of the central opening 111;
• the end piece 13 is engaged inside the body 10, and comprises:
• a first opening 131 capable of communicating a first air flow towards said media 1111; the first air flow constituting, after passage of said media 1111, a central air flow 5;
• the body of the diffuser 10 is a shell comprising an upper face 11 (or upper shell) and a lower face 12 (or lower shell).
• the upper shell 11 comprises a central opening 111 and lateral openings 112.
• the body of the diffuser 10 and / or the diffuser 1 is in a spheroid shape comprising an upper face
• the central opening 111 comprises a central opening 111 and lateral openings 112.
• the central opening 111 comprises a central opening 111 and lateral openings 112.
• the body of the diffuser 10 and / or the diffuser 1 is in the form of a cylinder or a sphere comprising an upper face 11 and a lower face 12, said upper face 11 comprising a central opening 111 and lateral openings 112.
• the end of the air hose 13 is engaged in the air diffuser 1 so that the longitudinal axis of the end of the hose is parallel to the central opening 111 of the diffuser air 1.
• the end piece of the air hose 13 is engaged in the air diffuser 1 so that the longitudinal axis of the end piece of the pipe is perpendicular to the central opening 111 of said diffuser air 1.
• the air diffuser 1 comprises or consists of synthetic materials, preferably of polymer.
• the air diffuser 1 has a length L of from 3 to 50 cm, preferably from 5 to 15 cm, preferably from 7 to 13 cm, more preferably the length L is approximately equal to 8 cm. According to one embodiment, the air diffuser 1 has a length L of 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15 cm. According to one embodiment, the air diffuser 1 has a length L of 5, 10, 15, 20, 25, 30, 35, 40, 45 or 50 cm.
• the air diffuser 1 has a width 1 comprised from 3 to 50 cm, preferably from 5 to 15 cm, preferably from 7 to 13 cm, more preferably the width 1 is approximately equal to 8 cm. According to one embodiment, the air diffuser 1 has a width 1 of 5, 6, 7, 8, 9, 10, 1 1, 12, 13, 14 or 15 cm. According to one embodiment, the air diffuser 1 has a width 1 of 5, 10, 15, 20, 25, 30, 35, 40, 45 or 50 cm.
• the air diffuser 1 has a thickness E of from 1 to 20 cm, preferably equal to 2, 4, 6, 8, 10, 12, 14, 16, 18, or 20 cm, preferably from 2 to 10 cm, preferably 2 to 6 cm, preferably the thickness E is approximately equal to 3 cm. According to one embodiment, the air diffuser 1 has a thickness of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 , 19 or 20 cm.
• the diameter is from 5 to 20 cm, preferably from 7 to 13 cm, more preferably the diameter is approximately equal to 6 cm. According to one embodiment, when the air diffuser 1 is spherical, the diameter is approximately equal to 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20 cm.
• the air diffuser 1 has a weight P comprised from 1 to 200 g, preferably from 10 to 100 g, from 20 to 100 g, from 30 to 100 g, from 40 to 100 g, from 50 to 100 g, from 60 at 100g, from 70 to 100g, from 80 to 100g, from 90 to 100g, from 100 to 200g, from 110 to 200g, from 120 to
• the air diffuser 1 has a weight P of approximately 1, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95 or 100g.
• the air diffuser 1 has a weight P of approximately 100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 155, 160, 165, 170, 175, 180, 185, 190, 195 or 200g.
• the air diffuser 1 is placed so that it is distant from the respiratory tract by 1 and 12 cm. According to one embodiment, the air diffuser 1 is placed so that it is distant from the respiratory tract by 3 and 8 cm. According to an embodiment illustrated in Figure 4, the air diffuser 1 eVou the body of the diffuser 10 is colored. According to one embodiment, the shell is colored. According to one embodiment, the upper face 11 and the lower face 12 are of different colors. According to one embodiment, the upper face 11 and the lower face 12 are of the same color. According to one embodiment, the medium 1111 is a porous medium, preferably a membrane. According to one embodiment, the medium 1111, preferably the membrane 111, makes it possible to distribute and linearize the central air flow.
• the membrane 1111 is a filtering membrane, preferably a filtering membrane capable of filtering particles and / or microparticles. According to one embodiment, the membrane 1111 is a filtering membrane capable of filtering particles or microparticles in suspension in the ambient air.
• the membrane 1111 is a filtering membrane capable of filtering from more than 0 to 100%, preferably from 1 to 100%, from 5 to 100%, from 10 to 100%, from 15 to 100%, 20 to 100%, 25 to 100%, 30 to 100%, 35 to 100%, 40 to 100%, 45 to 100%, 50 to 100%, 55 to 100%, 60 at 100%, from 65 to 100%, from 70 to 100%, from 75 to 100%, from 80 to 100%, from 85 to 100%, from 90 to 100%, of the particles and / or microparticles contained in a volume of ambient air.
• the membrane 1111 is a filtering membrane capable of filtering from more than 0 to 100%, preferably from 50 to 100%, from 55 to 95%, from 60 to 90%, from 70 to 85% of the particles and / or microparticles contained in a volume of ambient air.
• the membrane 1111 is a filtering membrane capable of filtering approximately 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 or 100% of the particles and / or microparticles contained in a volume d 'ambiant air.
• the present invention also relates to a device for developing and / or installing a dynamic mask for diffusing purified air.
• the device of the invention comprises an air diffuser 1 as described above.
• the device of the invention further comprises an air hose 2, a pump 3 which sucks in ambient air 8, and an air filter 4 making it possible to deliver a flow of filtered air 7.
• the air filter 4 is positioned in the air pipe 2 upstream or downstream of the pump 3.
• the air filter 4 is positioned in the pump 3 .
• the air filter 4 is chosen from dry air filters and / or wet air filters.
• the air filter 4 comprises or consists of a cellulosic material, preferably paper and / or cotton.
• the air filter 4 comprises or consists of synthetic polymers.
• the air filter 4 comprises or consists of HEP A ® .
• the air filter 4 is configured so that the air supplied to the diffusion and homogenization medium of an air flow, preferably to the membrane, and to the side openings is purified at least 90% relative to the ambient air, preferably 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 or 100% relative to the ambient air.
• the air filter 4 retains one or more pollutants from the ambient air which passes through said air filter 4; preferably the air filter 4 retains one or more pollutants chosen from fine particles, bacteria, fungi, viruses, dust and volatile molecules targeted for their odor or toxicity.
• the air filter 4 is able to filter from more than 0 to 100%, preferably from 1 to 100%, from 5 to 100%, from 10 to 100%, from 15 to 100%, from 20 to 100%, 25 to 100%, 30 to 100%, 35 to 100%, 40 to 100%, 45 to 100%, 50 to 100%, 55 to 100%, 60 to 100%, 65 to 100%, 70 to 100%, 75 to 100%, 80 to 100%, 85 to 100%, 90 to 100%, of the pollutants contained in a volume of the air flow ambient 8.
• the air filter 4 is able to filter from more than 0 to 100%, preferably from 50 to 100%, from 55 to 95%, from 60 to 90%, from 70 to 85 % of pollutants contained in a volume of the ambient air flow 8.
• the air filter 4 is capable of filtering approximately 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 or 100% of the pollutants contained in a volume of the ambient air flow 8.
• the device of the invention further comprises a device for controlling the air flow.
• the air flow control device is located at the outlet of the pump 3.
• the air flow control device further comprises an air flow pressure sensor, an air flow speed sensor and / or a pollution detection sensor; said sensor (s) being optionally located) close to the subject's face.
• the device of the invention further comprises at least one protective screen, preferably to protect the air flow from the strong turbulence of the polluted ambient air in the event of use of the diffuser or the device. during disturbed weather conditions and / or to increase the efficiency of the diffuser or device
• the device of the invention is associated with at least one means of communication, preferably radio, telephone and digital.
• the device of the invention is associated with at least one leisure device, preferably chosen from audio and / or video players.
• the association of the device of the invention with a means of communication and / or a leisure device makes it possible to limit the number of devices carried by a subject and to maintain freedom of movement and / or speech while continuously receiving a stream of purified air.
• the device of the invention is in the form of a helmet, preferably partially covering the head of a subject using said device of the invention.
• the invention also relates to the use of the diffuser and / or of the device of the invention as described above.
• the diffuser and / or the device of the invention is useful for bringing at least one flow of purified air to a subject, preferably a flow of central air 5 and flows of lateral air 6 in which the central air flow 5 is protected from the ambient air 8, by the lateral air flow 6.
• the diffuser and / or the device of the invention is useful for providing a purified air mask to a subject, preferably a dynamic purified air diffusion mask.
• the diffuser and / or the device is useful for providing at least one stream of purified air to a moving subject, preferably without said subject needing to cover all or part of his face.

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• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Pulmonology (AREA)
• Business, Economics & Management (AREA)
• Emergency Management (AREA)
• Epidemiology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Respiratory Apparatuses And Protective Means (AREA)
• Accommodation For Nursing Or Treatment Tables (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=67262418

Family Applications (1)

Country Status (3)

Family Cites Families (10)

• 2019
  • 2019-12-27 EP EP19850767.5A patent/EP3902570A2/de not_active Withdrawn
  • 2019-12-27 CN CN201980086250.2A patent/CN113226384A/zh active Pending
  • 2019-12-27 WO PCT/FR2019/053306 patent/WO2020136360A2/fr unknown

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