Abstract: Provided are high-filtration reusable face masks with replaceable filters. Reusable face masks can comprise a single piece mask body configured to cover a nose and a mouth of a human face and comprising at least one filter attachment port, wherein the at least one filter attachment port comprises a filter support structure, defines an opening in the mask body, and extends from the exterior surface of the mask body; wherein the at least one filter attachment port is configured to connect to a replaceable filter and support the replaceable filter by separating portions of filter media of the replaceable filter when the replaceable filter is attached to the at least one filter attachment port.

Abstract: A protective shield configured to be disposed over an N95 respirator worn by a user includes an inner shield and an outer shield. The inner shield defines a body, a flap, and a living hinge connecting the body and the flap with one another to enable the flap to fold under a user's chin while the body extends across a user's face. The body includes a center portion and first and second wings extending laterally outwardly in opposite directions from the center portion. The outer shield defines a body having a center portion and first and second wings extending laterally outwardly in opposite directions from the center portion. The wings of the outer shield are configured to releasably engage the respective wings of the inner shield to thereby releasably engage the outer shield with the inner shield with the center portions thereof in spaced-apart relation.

Abstract: A face mask apparatus with N95 filter capability is formed with a breathing chamber that provides adjustable warm and humidified air for inhalation. The breathing chamber heats cold air that is breathed in through the face mask during normal breathing, which is worn over the nose and mouth of a person. A temperature gauge monitors temperature for future adjustment of the amount of heat generating current. The air in the chamber is heated for inhalation by a heating pad. The temperature of the Heating Pad and by extension the warm air generated), is regulated/adjusted by increasing or decreasing the current output settings on a controller connected to the power source. Warm and humidified air is produced. The air intake front end includes one or more slots to accommodate N95 filters, dust and pollutant capturing filters, or exercise air flow barriers therein.

Abstract: The present description provides a filter element that includes an end or side portion attached breather tube. One exemplary filter element described herein includes filter media having front and rear walls each including a proximal end and a distal end, a side portion at the proximal ends of the front and rear walls, and an outlet. The filter element further includes a breather tube attached to the filter media in fluid communication with the outlet. The outlet is positioned at least partially on the side portion, and the front and rear walls of the filter media are joined together at least partially along a perimeter.

Abstract: A mask device includes a mask body including a front cover to form an outer appearance of the mask body, a frame coupled to the front cover, the frame located in front of a user's nose and mouth when the mask device is worn by the user, the frame including at least one inlet and at least one outlet located below the inlet, and a partition plate between the frame and the front cover, the partition plate forming an upper space and a lower space in the mask body. A first air cleaner is coupled to one side of the mask body and a second air cleaner is coupled to an other side of the mask body, where the first air cleaner and the second air cleaner filters outside air sucked in from an outside environment and supplies the filtered air to the mask body. The upper space of the mask body is in communication with the first air cleaner, the second air cleaner, and the at least one inlet, and the lower space of the mask body is in communication with the at least one outlet.

Abstract: Portable containment device having a chamber which further includes a first end, a second end, and a vertical wall, wherein a filter is arranged at the second end to entrap airborne particles emitted into an opening formed at the first end of the portable containment device.

Abstract: A reusable respirator including a mask adapted for covering and conforming to the face around the nose and a mouth of a user, a strap configured to secure the mask to a face of the user, and a filter component. All components of the respirator are capable of being cleaned, disinfected and sterilized at temperatures in excess of 50° C. An outer surface of the mask is substantially smooth and wettable for easily disinfecting and is shaped with a pair of outer shield portions for housing particulate air filters. The outer shield portions each include a closeable vent through the outer surface that is adapted to provide a user seal check and direct air flow through the outer surface for filtering by the respective particulate air filter, which is adapted to filter at least 95% of airborne particles.

Abstract: A respirator device having an elastomeric sleeve is provided. In an exemplary embodiment, a respirator device as described herein includes a rigid nozzle element and a body including a receiver having an elastomeric sleeve. The elastomeric sleeve defines a channel, and the elastomeric sleeve is configured to deform around the nozzle element when the nozzle element is inserted into the channel.

Abstract: A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a cushion. The cushion has a non-face contacting portion structured to be connected to the frame, a face-contacting portion structured to engage the patient's face, and a central portion that interconnects the non-face contacting portion and the face contacting portion. The frame may be structured to allow a forehead support to assume multiple positions, to compensate for replacement cushions that may have a different profile, shape or size. The cushion is structured to compensate for variations in strap tension, treatment pressure and/or movement of the patient. Headgear may be provided with a strap assembly in which one or more straps is provided with selectively adjustable elasticity or extensibility that may be automatically changed in dependence of treatment pressure and/or treatment type.

Abstract: Devices for nasal insertion may include an open-ended tubular element which extends along a central tube axis between a first end and a second end, the first end being larger than the second end, and in which the tubular element includes at least one spiral strut extending from the first end to the second end, and/or a nodule having an internal face, a rounded external face, and a stalk extending from the internal face and terminating in an anchor sufficiently larger than a receptacle in the tubular element and sufficiently deformable as to be pressed through the receptacle to affix the nodule to the tubular element.

Abstract: Disclosed herein are methods and systems for face mask with replaceable filter cartridges and components. A face mask includes a mask component, a replaceable filter component, and a closure component. The replaceable filter component is bonded to and as between the closure component and the mask component when the closure component is attached to the mask component.

Abstract: An adjustable mouth shield device provides an adjustably fitted mouth shield with adjustable headband for secure fit. An adjustable headband is fastened to a padded earpiece. A straight first extension from the earpiece is angled downwardly and forwardly to terminate in a swivel joint providing almost 360 degrees of swivel. A second extension is arced both downwardly and forwardly. A mouthpiece is fitted to an adjustable spring mount for horizontal pivot of the mouthpiece. The mouthpiece may, by virtue of the swivel joint and the spring mount, be moved completely away from a user's mouth and, in turn, pivoted and swiveled to be directly in front of the user's mouth. A filter is releasably attachable to the mouthpiece to shield a user's breath from objects, foods and other materials.

Abstract: A cartridge holder for a respirator, the cartridge holder including a fit-check device with a sealing platen that can be actuated between a first, unsealed position and a second, sealed position in which at least a portion of the sealing platen contacts a major surface of a disposable filter cartridge within the cartridge holder so as to prevent airflow through the disposable filter cartridge.

Abstract: A room air purifier including an RFID reader and a wireless communication unit, and methods of using such a room air purifier.

Abstract: The invention relates to a cover for a housing of a moisture-heat exchanger for laryngectomized and tracheostomized patients, comprising a cover edge and a number of recesses passing through the cover.

Abstract: An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The mask assembly comprises a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.

Abstract: A retractable respiratory mask of the present invention comprise a worn portion, a filter portion adapted to connect with a filter member, and a retractable portion; the retractable portion connected between the worn portion and the filter portion comprises a first bend portion, a second bend portion and a displacement section. The two bend portions are spaced apart from each other and the displacement section is connected between the two bend portions. The retractable respiratory mask of the present invention can change the relative position between the two bend portions by folding over the displacement section. The retractable respiratory mask shows an extended shape when the first bend portion and the second bend portion are orderly arranged in an extending direction, and conversely shows a contracted shape when two bend portions are arranged along the opposite direction. By doing so, the mask can be folded up to reduce entire volume.

Abstract: A hygiene filter for a device for artificial respiration, having at least one filter for filtering microorganisms and/or solid particles from a respiratory air volume flow, and a device for artificial respiration, having a holding device within the air intake region. The filter material is designed as a seal against the respiratory air volume flow conducting elements such that the risk of the occurrence of secondary air is reduced.

Abstract: A room air purifier comprises housing (9), air filter (100), RFID reader (143), RFID tag (120), and a wireless communication unit (142). A method is how to operating the room air purifier.

Abstract: Disclosed is a breathable mask capable of transmitting sound; the body of the mask comprises a breathable structure having a plurality of breathable holes and a sound transmission structure without the breathable holes; the sound transmission structure is prepared as follows: selecting a sound transmission area on the breathable mask and seal-pressing and hot-melting the inner and outer portion of the mask, then melting the plurality of breathable holes of the sound transmission area into a non-porous structure through the seal-pressing and hot-melting process; the breathable mask can further comprise a speaker edge, wherein the speaker edge is a circle non-porous structure outside the sound transmission structure, having an effect of expanding the sound.

Abstract: An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The mask assembly comprises a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.

Abstract: An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The mask assembly comprises a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.

Abstract: An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The mask assembly comprises a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.

Abstract: An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The mask assembly comprises a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.

Abstract: An interface for positive pressure therapy includes a mask assembly, a headgear assembly and a connection port assembly. The mask assembly comprises a seal member that has an upper portion movably connected to an integrated lower portion, wherein the upper portion rolls during hinging movement of the upper portion relative to the lower portion. The headgear assembly allows connection to the mask assembly in a direction substantially normal to a direction of strap tension. The connection port assembly includes a swivel elbow with a valve member that controls flow through a port that opens toward the user.

Abstract: A portable breathing apparatus for protecting a user against contact with the contaminated surrounding atmosphere. The breathing apparatus can be supplied with fresh breathable air via an air tube connected to an air supply system having an overpressure. The breathable air flows out of a body which is connected to the air tube and has at least one defined outflow surface for the breathable air.

Abstract: A pressure-compensation device for a housing includes: an inner side; an outer side; and a lattice-like cage having a gas opening. The gas opening connects the inner side and the outer side in a flow-conducting manner and is restricted, in a through-flow direction of the gas opening, by an inner edge and an outer edge. The gas opening is covered by a gas-permeable membrane. The membrane comprises a nonwoven-fabric composite part and has at least one nonwoven-fabric layer.

Abstract: A breathing mask includes a relatively rigid shell and an elastomeric sealing lip mounted to the relatively rigid shell. The elastomeric sealing lip has a contact zone configured to bear against the face of the person. The elastomeric sealing lip further includes a nose bridge region, a first nostril region and a second nostril region. The nose bridge region has a first zone of lower load-bearing capability. The first nostril region has a first zone of higher load-bearing capability. The second nostril region has a second zone of higher load-bearing capability. The first zone of lower load-bearing capability has a lower load-bearing capability than the first and second zones of higher load-bearing capability. In addition, the contact zone is configured to pivot about an articulation axis that extends through the first and second nostril regions.

Abstract: A self-administered oxygenation apparatus for increasing pressure within a non-intubated patient's lungs and thereby increasing an amount of oxygen in the non-intubated patient's blood when operated by the patient includes a mouthpiece, a vent member, and a resistance member. The mouthpiece includes an external portion defining a center orifice through which the patient selectively inhales and exhales air. The vent member includes a continuous side wall fixedly coupled to the external portion of the mouthpiece and defining an interior area in fluid communication with the center orifice. The resistance member is positioned between the interior area of the vent member and the mouthpiece, the resistance member having a flexible construction configured to fold inwardly upon inhalation so as to allow ambient air inhaled by the patient to pass thereby without resistance and having a perforated construction configured to decrease the flow of air exhaled by the patient.

Abstract: A closing device is provided for a container of a respirator with two container shells (2, 2?) joining each other at front surfaces, with at least one tightening strap (4), which encloses a part of a container shell outer surface located at right angles to the front surfaces. Two holding elements (5, 5?) are each provided with a recess (6, 6?) and are formed at the free ends of the tightening strap (4). A closing element (7) is formed in a U-shaped pattern with two legs (8) and meshes with each recess (6, 6?) of the holding elements (5, 5?). The legs (8) of the closing element (7) can be pulled out of the recess (6, 6?) of the holding elements (5, 5?) to take off the tightening strap (4).

Abstract: A personal air filter device with an air filter assembly retained in the air filter holding member is disclosed. An ear support member is attached to the air filter holding member and can be hung over the ear of the user to support the air filter holding member. Alternatively, a clip member attached to the air filter holding member can be utilized to attach the device to the user's clothing or accessories. An air tube assembly extends from the air filter holding member to the mouthpiece for the purpose of breathing filtered air flowing through the air filter assembly. An air intake check valve situated near the end of the air tube attached to a mouthpiece retaining member and an air outflow check valve situated near the outer surface of the mouthpiece retaining member to ensure exhaled air is directed out of the device and is not reinhaled.

Abstract: An acidic gas separation module 10, which improves gas separation efficiency and reduces pressure loss, includes: a permeating gas collecting tube 12 having tube walls in which through holes 12A are formed; a layered body 14 that has at least an acidic gas separation layer 32 and that is wound on the permeating gas collecting tube 12; and telescope prevention plates 18 (a gas supply side 18A and a gas discharge side 18B) provided at both end faces in an axial direction of the wound layered body 14, wherein the ratio (D2/D1) of the open area ratio D2 of the telescope prevention plate on the gas discharge side 18B relative to the open area ratio D1 of the telescope prevention plate on the gas supply side 18A is from 0.5 to 0.9. An acidic gas separation device includes the acidic gas separation module 10.

Abstract: A housing for a solid, fluidal substance for removing an undesired respiratory gas component of a respiratory gas flow, the housing comprising a space for receiving the solid, fluidal substance, a wall surrounding part of the space, a first separator surrounding part of the space, the first separator being configured to allow the respiratory gas to flow and to prevent the solid, fluidal substance from escaping from the space through the first separator, a second separator surrounding part of the space, the second separator being configured to allow the respiratory gas to flow and to prevent the solid, fluidal substance from escaping from the space through the second separator; and a limiter disposed between the first separator and the second separator, the limiter being configured to limit movement of the solid, fluidal substance inside the space.

Abstract: Methods are disclosed for filling a filter cartridge canister. Flow through an exit plenum and a filter screen of the canister is initially blocked, a sorbent inlet of the canister is open, and a ring of the canister is open. Flow is then initiated through the inlet and ring so sorbent particles and fluid flow into the canister. A pressure differential is provided between the inlet and the ring to enhance filling. The exit plenum is opened to impart an even fluid flow across a sorbent stratum. Flow through the ring is stopped, and sorbent particles continue to be added via the inlet until the cavity is filled. The filter screen is then compressed, the sorbent inlet is sealed and the filter screen is fixed to a compressed position while flow is maintained through the exit plenum.

Abstract: A prefilter cover for a bidirectional-airflow respirator cartridge, the prefilter cover including front and rear clamshell portions that are flexibly connected by a flexible connecting member.

Abstract: An adapter for use with a flow generator includes a conduit attachable to the outlet of the flow generator and an identifying element supported by the conduit and providing an identifying feature unique to a specific peripheral component attachable to the flow generator. The identifying feature is communicatable to the flow generator so that appropriate operating parameters of the flow generator may be automatically selected by the flow generator to coordinate with the specific peripheral component.

Abstract: A respirator service life indication system may include a breathing apparatus having an air purifying element; and a service life indicator arranged in a parallel flow configuration with the breathing apparatus. The service life indicator typically might have a sacrificial cartridge, and a sensor disposed downstream of the sacrificial cartridge and configured to detect a contaminant concentration above a predetermined threshold in a gas stream passing through the sacrificial cartridge.

Abstract: Various embodiments of a respiratory interface device, such as a mask (10), that includes a first substantially rigid portion (14), a second substantially rigid portion (16) and a connecting member (18) that is structured to flexibly connect the first and second substantially rigid portions. The flexible connection provides an effective fit of the respiratory interface device against the user's face.

Abstract: A respirator device having an elastomeric sleeve is provided. In an exemplary embodiment, a respirator device as described herein includes a body including a receiver having an elastomeric sleeve and a filter cartridge that includes a rigid nozzle element. The elastomeric sleeve defines a channel, and the elastomeric sleeve is configured to deform around the nozzle element when the nozzle element is inserted into the channel.

Abstract: There is provided a portable intake air sterilizing apparatus which allows prevention of a worker's infection with virus/bacteria and which allows, at the same time, the worker to work comfortably. The apparatus includes a cover member C for covering one or both of the nose and the mouth, an air intake portion K for the inner space of the cover member C, and a chlorine dioxide slow-release portion J capable of releasing chlorine dioxide gas into an intake air in association with introduction of this intake air from the air intake portion K.

Abstract: A half facepiece respirator has a shaped support piece supporting and fixing the position of a particle or paper filter insert or outsert with either the support piece or the particle filter incorporating a face sealing component. Placed within the shaped support piece, a grille may be placed in the lower section of the shaped support piece. Additionally the half facepiece includes a head harness having a release mechanism.

Abstract: A semi-disposable face mask has a shaped molded base composed of silicone and/or TPE and molded forming a face seal, a filter media and a support structure that houses the shaped molded base and filter media in fluid communication allowing airflow from an environment through the filter media to the face seal.

Abstract: Systems, methods, and devices for an end of service life indicator for a respirator are described herein. For example, a device can include a cartridge containing a filter material and an insert extending through at least a portion of the filter material having a first path with a first opening to provide a sample of air that is representative of a saturation of the filter material and a second path with a second opening configured to provide a filtered sample of the air throughout a service life of the cartridge.

Abstract: A filter unit for use in a filter box assembly, the filter unit comprising a particulate filter layer and a gas filter layer, the particulate filter layer being configured to bias towards the gas filter layer, exerting pressure thereon. There is also described filter box assemblies (including a duel filter assembly) comprising the filter unit, and a respiratory protective device comprising the filter unit. Also described is a method of manufacturing a filter unit with a gas filter layer and a particulate filter layer, wherein a force is applied to the particulate filter layer causing it to fix the gas filter layer in place. Also described is a method of manufacturing a dual filter assembly wherein a casing is twice reversibly attached to and detached from a support surface, filter units being added to the casing when the casing is attached to the surface.

Abstract: A breathing airbag device includes a filter airbag, an inner holding stand, a nose holder, a mouth holder, and two elastic straps, wherein the filter airbag is adapted for interacting with and filtering the outside air, the inner holding stand is adapted for supporting and fixing the nose holder and mouth holder, the nose holder is adapted for fittingly supporting the human nose, the mouth holder is adapted for fittingly supporting the human mouth, the inner holding stand is located on the filter airbag, the nose holder and the mouth holder are located on the inner holding stand, and two ends of each of the elastic straps are fixed to an edge position of the nose holder. The present invention has some advantages of good tightness, simple structure and low manufacturing cost.

Abstract: Gas masks and canisters for gas masks have a chemical sorbent that protects the respiratory system of the wearer from gaseous compounds. The remaining service indication systems for respiratory protections systems provide a warning to the wearer that the capacity of the chemical sorbent to adsorb or absorb further compounds is nearly depleted. A remaining service life indication system has a computer memory device for storing information concerning the canister for determining an end of the service life of a gas mask, a canister and/or a cartridge and such devices from the input of various sensors.

Abstract: A filter unit for a respirator mask, including: a body having an air inlet portion, an air outlet portion, and a connector for attaching the filter unit to a portion of the respirator mask; a filter member for filtering the incoming air; and a sealing arrangement having a frame at least partially surrounding a pressure arrangement configured to be urged towards and into contact with a contact portion of the body, such that the passage of air is substantially prevented from passing through at least one of the at least one air inlet portion and the at least one air outlet portion, wherein the pressure arrangement includes a flexible portion to facilitate the urging of the pressure arrangement towards the portion of the body.

Abstract: A filtration device including a contoured support having 1) an interior surface, 2) an outside peripheral surface spaced farther from a center of the contoured support than the interior surface, and 3) a rim enclosed and sealed to a perimeter of the contoured support. The filtration device includes macroscopic openings in the contoured support extending from the interior surface to the outside peripheral surface, and a plurality of nanofibers having diameters less than 1 micron. The nanofibers are disposed on the outside peripheral surface of the contoured support, and cover the macroscopic openings to form a filtration medium on the contoured support.

Abstract: A respiratory protection composite facepiece includes a polymeric rigid facepiece body having a first surface and a second surface, and a silicone sealing facepiece element chemically bonded to at least one of the first surface and the second surface. Methods of forming a respiratory protection composite facepiece are also disclosed.

Abstract: The invention relates to a filter cartridge for an air filtering device, in particular for a filtering face mask and a method for manufacturing a filter cartridge, comprising a stiff cup-shaped casing having a bottom and a circumferential sidewall extending at least section-wise parallel to one axis, a stiff discoidal lid and a filter bed of loose filter material compressed between the lid and the casing, the lid and the bottom containing each at least one through-hole so that air to be filtered passes through the filter bed, and at least one of the lid and the bottom being curved to at least one direction, whereby the lid is at least essentially arranged within the casing, the outermost contour of the lid close-fitting to the inner contour of the sidewall, and fixed thereto by a direct connection, particularly by a non-detachable connection.