Abstract: A sorbing granular material (20) is provided including a plurality of particles of granular material (5). The particles of granular material (5) are mixed at least partly with magnetizable particles (10), so that in case of magnetization of the magnetizable particles (10), the particles of granular material (5) form a compacted sorbing granular material (20) based on magnetic attracting forces between the magnetizable particles (10). The compaction is reversible. In addition, a process for producing a sorbing granular material (20) is provided.

Abstract: The present invention relates to a device for delivering a supply of gases to a patient. The device includes a patient interface and connecting member. The connecting member is preferably a L-shaped swivelled connector that is capable of being fixed into one of two positions, a first position where the connector is freely rotatable within the patient interface, and a second position where an interference between the interface and connector prevents the free rotation of the connector within the patient interface. The present invention further relates to a connector that has outlet means, which includes at least one outlet vent and a funnel, which in use directs and passes a substantial portion gases expired from the patient through the outlet vent or vents.

Abstract: A respirator including a collapse-resistant means for resisting collapse of the respirator main body due to respiration of a user during use of such a respirator is disclosed. Specifically, in various embodiments, the collapse-resisting means may be a deflection member, a stiffening material, fastening components configured to apply an outward-facing deflection force when the respirator is worn, or any combination thereof. Additionally, a dual exhalation vent assembly adapted for use in a collapse resisting respirator is also disclosed.

Abstract: Reinforced filter media are prepared by adhering discrete, non-intersecting strands of thermoplastic or thermoset materials to the filter media web. The filter media may be a fabric, a nonwoven web or a filtering foam. The reinforced filter media can be used to prepare respirators, including flat-fold respirators or molded respirators.

Abstract: A filter assembly for use in sidestream gas sampling assembly. The filter assembly of the present invention includes a hydrophilic. The filter further includes a Hydrophobic member positioned downstream of the hydrophilic liner. The hydrophobic disk acts as a second line of defense against moisture reaching the sensing mechanism member that is constructed from a porous material and is situated such that gas entering the filter assembly passes through at least a portion the hydrophilic member. In a further embodiment, the filter includes a hydrophobic member positioned downstream of the hydrophilic member. The hydrophobic member acts as a second line of defense against moisture reaching the sensing mechanism in the gas sampling assembly.

Abstract: An embodiment in accordance with the present invention provides a water dissipation device to remove water vapor from a humidified gas traveling through a breathing circuit between a patient and a ventilator, or a ventilator and a patient. The present invention includes a water dissipation device having a housing defining entry and exit ports for coupling to the breathing circuit and a breathable medium permeable to water vapor and impermeable to liquid water bacteria, viruses and other gases enclosed within said housing.

Abstract: A respirator leak detection system and method for increasing the sensitivity and accuracy of leak detection through the fit seal of a respirator. A charged particle separator is used to separate charged particles that pass therethrough and to draw charged particles away from an aerosol flow into a clean gas flow. The separator may also be configured as an aerosol concentrator that takes in a major aerosol flow and outputs a minor flow of higher particle concentration. Neutral particles having no charge, which may have passed through the filtering medium respirator and which are not indicative of fit seal leaks are not entrained in the output flow for subsequent detection, thus increasing the accuracy of the filter leak detection system.

Abstract: A smart light comprising: a battery; a light bulb; circuitry connecting the battery to the light bulb; a detector for detecting the presence of a hazardous atmospheric condition; and alert apparatus connected to the detector for alerting a user when a hazardous atmospheric condition is detected by the detector. A self-rescuer comprising: a self-contained breathing apparatus (SCBA); and a smart light; wherein the smart light comprises: a battery; a light bulb; circuitry connecting the battery to the light bulb; a detector for detecting the presence of a hazardous atmospheric condition; and alert apparatus connected to the detector for alerting a user when a hazardous atmospheric condition is detected by the detector, and further wherein the alert apparatus is connected to the circuitry and configured so as to flash the light bulb when a hazardous atmospheric condition is detected.

Abstract: A protective cover for preventing entry of particulate matter into a delivery hose of a respiratory device includes a filter member having a peripheral edge portion. The filter member is composed of a filter material having a mesh size capable of preventing the particulate matter to pass therethrough. The protective cover further includes a support member having an inner edge portion and an outer edge portion. The inner edge portion of the support member is attached to the peripheral edge of the filter member, such that, the support member circumferentially surrounds the filter member. Furthermore, the protective cover includes a securing member attached to the outer edge portion of the support member, such that, the securing member circumferentially surrounds the support member. The securing member is capable of gripping an end portion of the delivery hose of the respiratory device.

Abstract: The Waugh Stoma Cover, consists of 2 Tefla band aids attached to each other by the tacky sides back to back, with nylon netting between the two. The nylon netting covers an opening in the two band aids approximately 1.? in diameter.

Abstract: The present invention provides compact nasal, oral and ear inserts with incorporated filters, specially designed to provide a more pleasant and healthy intake of air. Largely fabricated of a soft, pliable fabric such as compressed cotton, each Philter insert is comprised of two cylindrical filters, joined together via a flexible wire bridge. One example of the filtering material is activated charcoal, long known by the medical industry to be a safe, effective filtering agent for extracting liquids and gases from their harmful elements. As an additional consideration, this product is offered in several sizes to accommodate both child (under age twelve would require adult supervision) and adult users. The Philter inserts can be sold individually, or packaged with a dozen of more units per box.

Abstract: Methods of preparing polymeric webs include hot melt blending of thermoplastic resins and processing aids. The process aids include hindered amine N-substituted succinimide oligomers. The webs prepared from the blends may be in the form of films or non-woven fibrous webs. Non-woven microfiber webs are useful as filtration media. Among the polymeric webs produced are electret webs. The processing aids also function as charge-enhancing additives for the electret webs.

Abstract: A breathing apparatus is operable in self-contained and filtered modes of operation. In the self-contained mode of operation, a breathable gas is delivered to a user from a self-contained source of breathing gas. In a second, filtered mode of operation, a suction source draws ambient air through a filter removing contaminants and delivers filtered ambient air to the user. A method of delivering air to a subject is also provided.

Abstract: A respirator including a collapse-resistant means for resisting collapse of the respirator main body due to respiration of a user during use of such a respirator is disclosed. Specifically, in various embodiments, the collapse-resisting means may be a deflection member, a stiffening material, fastening components configured to apply an outward-facing deflection force when the respirator is worn, or any combination thereof. Additionally, a dual exhalation vent assembly adapted for use in a collapse resisting respirator is also disclosed.

Abstract: A respiratory nasal filter including an outer ring having concentric outer periphery and inner periphery sized to the periphery of a user's nasal orifice, a filter layer having an outer periphery larger than the inner periphery of the outer ring, but smaller than the outer periphery of the outer ring and an adhesive applied to the outer ring for bonding the filter layer concentrically to the outer ring and for bonding the outer ring to the columella, a nasal sill, an alar sidewall and the facet of the user's nose.

Abstract: Electret webs are presented which include a blend of a thermoplastic resin and a charge-enhancing additive. The charge-enhancing additives include a heterocyclic imide material which is free of fluorinated groups. The webs prepared from the blends may be in the form of films or non-woven fibrous webs. Non-woven microfiber webs are useful as filtration media.

Abstract: In a nano filter structure for breathing and a manufacturing method of the nano filter structure, a semiconductor process technology is used for manufacturing a nano filter structure comprising a top gate, a bottom gate, a plurality of sidewall gates and a plurality of supports. The sidewall gates include a plurality of filterable gratings, and the filterable gratings are controlled precisely to a nanoscale by a semiconductor process technology. Therefore, the nano filterable gratings can be manufactured easily and quickly, and the multilayer design of the filterable gratings enhances the aperture ratio of a filter material, such that users can inhale or exhale easily through the filter material.

Abstract: A face mask is provided. The face mask includes a body portion that is configured to be placed over a mouth and at least part of a nose of a user such that the air of respiration is drawn through the body portion. The body portion includes a baffle layer which helps prevent penetration from a fluid striking the mask. The baffle layer has an outer and an inner surface with a plurality of projections extending from one of the outer or inner surfaces. The baffle layer aids in absorbing energy associated with fluid striking the body portion of the mask. The baffle layer distributes fluid away form the point of impact in the channels between the projections.

Abstract: A complex respirator is provided that includes a first shell, at least a first filter layer and a second filter layer. The first filter layer is replaceable and arranged on an outer side of the first shell while the first shell is disposed on an outer side of the second filter layer. A slot is formed on an outer side of the first shell for accommodating the first filter layer. The filtering area of the first filter layer is smaller than that of the second filter layer while pore size of the first filter layer is larger than that of the second filter layer. The second filter layer filters the gas that the first filter layer is unable to filter. Moreover, the type of first filter media of the first filter layer may be chosen based on the location that the complex respirator is to be used.

Abstract: A filtering face-piece respirator 10 that comprises a mask body 12 and a harness 14. The mask body 12 includes (i) a filtering structure 18, (ii) a plastic support structure 16, and (iii) a nose clip 19 that is secured to the plastic support structure 18 by being molded therein. The inventive filtering face-piece respirator is beneficial in that it eliminates the need for an adhesive or welding step to secure the nose clip to the mask body.

Abstract: A face/dust mask constructed from differently-shaped filter media parts, each part having a different function, and each part interconnected so as to form a fitted air filter. Dual filters assist in eliminating from the intake air a substantial amount of the dust and debris encountered by riders of dirt bikes, manual bicycles, All-Terrain Vehicles, and other machines operated over unimproved, dusty terrain. By the nature of the materials and contours of the component parts, the mask fits comfortably and effectively for both adult and child users. The invention is highly resilient so as to adapt itself to the interior shape of a protective helmet or the mouthpiece section of a motorcycle helmet or similar safety helmet which is placed into position over the mask. The mask is of versatile design so as to enable a variety of embodiments with different filtering capabilities.

Abstract: A breathing protector may include a filter housing having a central axis, a distal end, a proximal end, a first opening and a second opening. The second opening may be located in a proximal end of the filter housing and the first opening may be located distally of the second opening, such that the first opening is located upstream of the second opening. An exchanging filter may be disposed in the filter housing and a valve seat may extend around the first opening. A rail, located circumferentially of the valve seat, may extend axially and distally away from the first opening. The rail may include a distal end and at least one rib. A valve member may be arranged in a transversal plane to the central axis and engage the valve seat in a closed position. A return spring may press the valve member into the open position.

Abstract: The present invention is a breathing improvement monitor that continuously measures involuntary breathing. The monitor is a sensor apparatus that is attached to a patient's mask which is connected to the monitoring apparatus. The sensor may be reusable and attachable and detachable to a mask or it may be an integral part of a breathing mask. The sensor technology may be any type sufficient in the art, including but not limited to solid state sensors, transducers, electromagnetic microturbines and the like. Since the mask does not have to be removed and the sensor provides constant signal to the monitoring apparatus, a real time status of a patient's involuntary breathing capability may be determined for a doctor's consideration.

Abstract: In order to prevent tainting of a cougher's hand with germs, the product from a cough is carried in contact with a germicide inside a hollow article, and is vented out of the hollow article, in directions away from the user's face and hand holding the article. More specifically, the cough catcher has a hollow region for accepting the product from a cough therein. This hollow region has a filter element containing a germicide mounted therein, and a series of channels formed between the filter element and a bottom surface of the hollow region. The channels communicate with vent ports around a rim portion of the cough catcher. The vent ports are oriented away from both the mouth opening and the outside surface of the cough catcher for conveying the product from a cough away from both the face and the hand of a user.

Abstract: A breathing air purification device and method having a carbon-monoxide free sweep stream. Water vapor is removed from a compressed air stream using a membrane dryer, comprising, a membrane having a permeate portion and a non-permeate portion, a membrane housing which encases the membrane, a membrane feed inlet conduit connected to the membrane and a non-permeate gas outlet conduit fluidly connected to the non-permeate portion of the membrane. The sweep stream used to cleanse the outer permeate portion of the membrane dryer is taken from a catalyst filter. The catalyst filter includes a cartridge containing a bed of catalyst, two end pieces maintaining the cartridge within a catalyst bed housing and having outlet holes, a catalyst inlet conduit connected to the bed of catalyst and a product gas outlet conduit connected to the outlet holes. A sweep inlet tube provides a gas connection from the catalyst filter component to the permeate portion of the membrane.

Abstract: In a nano filter structure for breathing and a manufacturing method of the nano filter structure, a semiconductor process technology is used for manufacturing a nano filter structure comprising a top gate, a bottom gate, a plurality of sidewall gates and a plurality of supports. The sidewall gates include a plurality of filterable gratings, and the filterable gratings are controlled precisely to a nanoscale by a semiconductor process technology. Therefore, the nano filterable gratings can be manufactured easily and quickly, and the multilayer design of the filterable gratings enhances the aperture ratio of a filter material, such that users can inhale or exhale easily through the filter material.

Abstract: A nasal air filtration device includes a pair of either planar or concave-convex filters, a support structure incorporating a pair of generally annular bases or sleeves for supporting the filters, and a bridge that couples the bases or sleeves to maintain them in a desired spaced-apart relation and to determine a desired angular relationship. The support structure is insertable into the nasal cavities to position the filters within corresponding nasal cavities. Flexible rims maintain the support structure and the filters in spaced-apart relation to the surrounding nasal wall. The rims conform to surrounding nasal tissue to form seals. The rims can be selectively inclined to facilitate insertion and resist accidental removal. In certain embodiments the device is combined with a filter that covers the mouth to provide an air filtration system.

Abstract: A nasal air filtration device includes a pair of either planar or concave-convex filters, a support structure incorporating a pair of generally annular bases or sleeves for supporting the filters, and a bridge that couples the bases or sleeves to maintain them in a desired spaced-apart relation and to determine a desired angular relationship. The support structure is insertable into the nasal cavities to position the filters within corresponding nasal cavities. Flexible rims maintain the support structure and the filters in spaced-apart relation to the surrounding nasal wall. The rims conform to surrounding nasal tissue to form seals. The rims can be selectively inclined to facilitate insertion and resist accidental removal. In certain embodiments the device is combined with a filter that covers the mouth to provide an air filtration system.

Abstract: An apparatus, system, and method for managing respiratory secretions and fluids in sections of artificial airways. In an embodiment of the invention, a respiratory secretion retention (RSR) device configured to fluidly connect to an artificial airway can be provided. The device can include a housing that defines a passageway for the flow of respiratory gases with at least two chambers coupled to the housing. The chambers are configured to retain exhaled respiratory particulate and liquid. The respiratory secretion retention device further includes a patient port coupled to the housing that is in fluid communication with the artificial airway and a repositionable barrier configured to isolate at least one of the two chambers from the passageway.

Abstract: A patient interface device that includes a support member sized and configured to span at least a portion of a patient's face while remaining below the patient's eyes responsive to the patient interface device being donned by such a patient. A sealing assembly is attached to the support member via a snap assembly associated with the support member and the sealing assembly. The snap assembly allows the sealing assembly to selectively attach to the support member.

Abstract: The present invention relates to a device for delivering a supply of gases to a patient. The device includes a patient interface and connecting member. The connecting member is preferably a L-shaped swivelled connector that is capable of being fixed into one of two positions, a first position where the connector is freely rotatable within the patient interface, and a second position where an interference between the interface and connector prevents the free rotation of the connector within the patient interface. The present invention further relates to a connector that has outlet means, which includes at least one outlet vent and a funnel, which in use directs and passes a substantial portion gases expired from the patient through the outlet vent or vents.

Abstract: Airflow is improved for multi-agent chemical biological air-purifying apparatus by providing a filter module that has multiple filter elements contained within a substantially sealed housing. The housing secures the filter elements in a spaced relation such that the top and bottom faces of each filter element are exposed to the flow of air and provides an air path within the housing adapted to channel air through the multiple filter elements in a parallel flow. The filter module may be made from a flexible and resilient plastic material and may be contoured to conform to the shape of a helmet liner or similar headgear.

Abstract: A unidirectional valve, wherein the valve comprises a valve body including a frame, a valve opening through the frame, and a valve seat extending from the frame and at least partially surrounding the valve opening. The valve further includes a valve flap having a first portion attached to the frame and an adjacent second portion free to move from a first position where the second portion is in contact with at least a part of the valve seat to a second position where at least part of the second portion is spaced from the valve seat, wherein the valve flap has a contour profile. The contoured profile may be along the length of the valve flap, between the point of attachment of the flap to the frame and the flap end, or from one flap side edge to a second side edge.

Abstract: The present invention provides a mask filter exhibiting a high antimicrobial/antiviral activity, a high dust filtration ability, a high ventilation characteristic, a high failure-strength and a high workability into a mask and the mask produced using such mask filter. An antimicrobial polyolefin fiber sheet is provided wherein the polyolefin fiber sheet has one or more spots in which 1/100 or more by volume of individual inorganic antimicrobial agent particles are exposed on surfaces of polyolefin fibers per fiber sheet area of 1.0×10?2 mm2 or has one or more spots in which the inorganic antimicrobial agent particles are exposed on the surfaces of polyolefin fibers each occupying an area of 0.01 ?m2 or larger per fiber sheet area of 1.0×10?2 mm2. Such polyolefin fiber sheet is arranged as the core layer and this core layer is sandwiched between upper and lower layers of dry nonwoven fabric to form the mask filter in the form of a laminated sheet. Such mask filter is used to form the mask.

Abstract: A personalized protective mask comprises a malleable wire frame, a filtration bag, and a tether. The filtration bag is positioned over the wire frame and the tether is attached at each end to an ear section of the wire frame. The mask is placed over the face of the individual who then bends the wire frame to force it to conform to the individual's own face contour. The tether pulls tight the filtration bag to the individual's face for creating a mask which fully covers the user's nose and mouth. The protective mask is comfortable to wear, whether in-use on the face or in a stand-by position around the user's neck.

Abstract: A personal air filter with amplifier and vibrator having a mouthpiece and housing, incorporating filter media, with amplifier and vibrator. Inhaled air flows into the housing through the rearward vent end, past the amplifier and vibrator then through the filter media, and then out the forward end vent mouthpiece for inhalation of cleansed air by the user. The device is held to the mouth by the user's lips for the duration of the inhalation, without using hands or attachments to face. During inhalation and exhalation, the device is retained between the lips with the air flow moving through the housing in either direction past the amplifier producing audible sound for monitoring the duration of inhalation and exhalation facilitating controlled breathing. During vocalized respiration, the air flow moving past the oscillating vibrator produces oscillation vibration for internal massage or communicating said vibration to another person.

Abstract: A breathing mask shall has an inspiration valve (4) that can be replaced in a simple manner. The breathing valve (4) is designed for this purpose as a modular assembly unit that can be inserted into the breathing gas channel (3) from the outer side (10) of the mask.

Abstract: An improved carbon dioxide absorber for use in a closed circuit patient breathing system has a canister insertable in the breathing circuit for receiving recirculating breathing gases. The canister contains a pelletized CO2 absorbent material that removes the CO2 from the breathing gases passing through the absorber. A quantity of the CO2 absorbent material is treated with a chemical indicator such that the chemical indicator makes a color change indicative of the state of the absorptive capacity of the absorbent material. A separate quantity of the CO2 absorbent material is treated with a second chemical indicator. The second chemical indicator changes color to indicate the degree of dryness of the CO2 absorbent material. The second chemical indicator may comprise cobalt chloride and serves to indicate the potential for excessive heat generation and toxic gas generation conditions within the CO2 absorbent canister.

Abstract: A protective cover for preventing entry of particulate matter into a delivery hose of a respiratory device includes a filter member having a peripheral edge portion. The filter member is composed of a filter material having a mesh size capable of preventing the particulate matter to pass therethrough. The protective cover further includes a support member having an inner edge portion and an outer edge portion. The inner edge portion of the support member is attached to the peripheral edge of the filter member, such that, the support member circumferentially surrounds the filter member. Furthermore, the protective cover includes a securing member attached to the outer edge portion of the support member, such that, the securing member circumferentially surrounds the support member. The securing member is capable of gripping an end portion of the delivery hose of the respiratory device.

Abstract: A heat exchange module comprising a number of substantially parallel and spaced apart heat exchange elements is provided. One or more surfaces of the heat exchange elements may be coated with a dessicant. The module can be manufactured so that first and second surfaces of the module are curved. The module may be used as part of a face mask or other garment that positions the module within the respiratory air stream of a user. The module may be inserted in a mesh sleeve provided as part of the garment. The module may also be used as part of other forms of clothing that protect the face and in protective helmets, or as part of outdoor or survival equipment.

Abstract: The invention relates to a new mask for the protection against biological agents having additional features to improve the efficiency. The mask is in particular equipped with a filtering layer providing outstanding performances against biological agents, with a high efficiency exhalation valve and with a boundary sealing layer to enhance the seal between mask and face.

Abstract: A respiratory mask having a flexible, mask seal portion for engagement with the face of a user, a gel forehead cushion and a rotatable elbow coupling having integral exhaust ports. The mask seal portion has a thin section which permits the mask to more easily adapt to the contour of the face of the user. The gel forehead cushion provides increased compliancy and resiliency to better adapt to multiple user physical profiles. The elbow coupling includes tapered through holes in a polycarbonate arc piece to provide a quiet passage of gas through the holes.

Abstract: A powered air-purifying respirator that includes an enclosure, defining a single contiguous enclosed interior, an inlet duct, including an inlet and a distribution portion, that guides ambient air to the interior of the enclosure, a plurality of filter canisters disposed within the interior of the enclosure, and a blower that forces air through the at least one inlet, into the interior of the enclosure and through the plurality of filter canisters to produce filtered air suitable for breathing. A valve controls the flow of ambient air through the inlet duct. A fluid dam, disposed in an air path between the inlet and the filter canisters prevents liquids from reaching the filter canisters. The enclosure is reinforced and is adapted to provide protection for the filter canister from flame and heat while the filter canister is in use. A recirculation valve recycles previously-filtered air back into the enclosure.

Abstract: The cough pouch contains the infectious aerosol spray of a cough or sneeze in medical-grade filter pouch protecting the general public from disease-carrying viruses and bacteria. It also protects the cougher's hand from being contaminated. The reusable disposable cough pouch opens and reseals with light finger pressure when used in a “cupped” hand. Its small size and portability allows for discrete use in public situations, and is easily carried in a purse, pocket or similar small container.

Abstract: A facepiece insert (16) that has a fluid communication component (30, 32) non-integrally joined to a supporting portion (34). The insert can be made by (a) providing at least one supporting portion (34) of a facepiece insert (16); (b) providing at least one fluid communication component (30, 32) separately from the supporting portion (34) of the facepiece insert (16); and (c) securing the at least one fluid communication component (30, 32) to the at least one supporting portion (34).

Abstract: A water dissipation device for removing water vapor or moisture from a breathing circuit is provided, including an upper lid portion, an entry port and an exit port. An outer cover structure extends from the upper lid portion to define an enclosed volume. An inner frame extends from the upper lid portion inside the outer cover structure. The outer cover structure includes a first layer of water or moisture wicking material and a second layer of water vapor breathable medium, and has an inner surface area bounding an inner flow space such that water vapor or moisture can permeate from the inner flow space through the outer cover structure out of device. The device can include an inner cup structure extending from the upper lid portion into the enclosed volume to displace the enclosed volume and define and bound a portion of the inner flow space and compressible volume therein.

Abstract: Various systems, devices, NO2 absorbents, NO2 scavengers and NO2 recuperator for generating nitric oxide are disclosed herein. According to one embodiment, an apparatus for converting nitrogen dioxide to nitric oxide can include a receptacle including an inlet, an outlet, a surface-active material coated with an aqueous solution of ascorbic acid and an absorbent wherein the inlet is configured to receive a gas flow and fluidly communicate the gas flow to the outlet through the surface-active material and the absorbent such that nitrogen dioxide in the gas flow is converted to nitric oxide.

Abstract: The present invention provides a system for a gas delivery and monitoring system for delivering a gas product to a patient and receiving a gas product exhaled from a patient. In an embodiment, the gas delivery and monitoring system includes a head support made of resilient material and having therein a facial cavity. The facial cavity is configured to fit the contours of a patient's face and provides an oxygen rich environment for the patient while undergoing a medical procedure. In an embodiment, the facial cavity is shaped substantially in the form of a figure eight. In an embodiment, the facial cavity is further provided with one or more segmented edges that can be removed to further shape the facial cavity to the contours of the patient's face. In an embodiment, tubing is used to deliver oxygen from an oxygen source to the patient. Similarly, tubing is also used to receive carbon dioxide exhaled by the patient so that it might be measured by a carbon dioxide monitor.

Abstract: A filter assembly for use in sidestream gas sampling assembly. The filter assembly of the present invention includes a hydrophilic member that is constructed from a porous material and is situated such that gas entering the filter assembly passes through at least a portion the hydrophilic member. In a further embodiment, the filter includes a hydrophobic member positioned downstream of the hydrophilic member. The hydrophobic member acts as a second line of defense against moisture reaching the sensing mechanism in the gas sampling assembly.

Abstract: A respiratory mask for protecting a wearer against airborne particulates, chemical vapors, and splashes is disclosed. The mask includes a body sized to fit over at least a portion of the face of a wearer. The body includes a first layer including a microporous membrane having a plurality of interconnecting pores extending therethrough, and a second layer including an absorbent textile. The mask further includes an attachment mechanism for coupling the mask to the face of the wearer.