Abstract: A pleated molded filtering face piece respirator to be worn upon the face of a wearer and for providing filtering including at least one layer of moldable flexible plastic material formed from openwork flexible plastic material for providing a plurality of perforations for allowing for the free passage of air through the openwork plastic. A layer of moldable filter material for filtering impurities in the air, the one layer of flexible plastic material formed from openwork flexible plastic material and the layer of filter material for filtering impurities in the air lying one on top of the other to form a moldable multilayer of flexible plastic material and filter material. The moldable multilayer of flexible plastic material and filter material are pleated into pleated material and molded to form the pleated filtering face piece respirator to a desired configuration where the one layer of openwork flexible plastic material forms a support layer to carry the layer of filter material.

Abstract: A respiratory mask body defining a breathable air zone for a wearer and having a shut-off valve is provided. In an exemplary embodiment, the mask body includes one or more inlet ports configured to receive one or more breathing air source components. The shut-off valve is operable between a closed position and an open position, and when in a closed position the shut-off valve prevents fluid communication between the one or more inlet ports and the breathable air zone and the shut-off valve returns to an open position in the absence of an applied force.

Abstract: A strap retaining device having an actuation arm that may engage a retaining tab is provided. In an exemplary embodiment, the strap retaining device includes a frame, a retention tab pivotally connected to the frame, and an actuation arm connected to the frame and having a first actuation element movable towards the retention tab from a neutral position to an actuated. The first actuation ramp is movable in a first plane to cause the retention tab to move in a second plane that is perpendicular to the first plane.

Abstract: An adjustable face mask having a body conforming substantially to the facial structure of a wearer. The face mask is provided with a neck protector and removable filter and with a strip of fabric designed to push air down to the sides of the wearer's face in order to eliminate fogging of the wearer's goggles. The face mask can optionally provide neck protection with a descending neck member.

Abstract: Herein is disclosed a shaped filtering face-piece respirator having a face seal that includes a water-vapor-breathable layer.

Abstract: A filtering face-piece respirator 10 that comprises a harness 14 and a mask body 12 that has a pleats 21. The mask body 12 has an indicia 19 located within the pleat 21 in at least a partially non-visible location when the pleat 21 is folded. The indicia 19 is made from a weld pattern and is fully visible when the pleat 21 is unfolded. The fully visible indicia 19 provides an indication to the wearer that the mask body is in its proper unfolded condition. The indicia 19 also includes welded lines that extend normally across the pleat to improve collapse resistance.

Abstract: A filtering face-piece respirator 10 that includes a harness 14 and a mask body 12. First and second bond lines 30a, 30b are located on opposing sides of the mask body 12 and join a top portion 18 of the mask body 12 to the bottom portion 20. The first and second bond lines 30a, 30b extend from the frontal line of demarcation 22 to upper and lower perimeter segments 24a, 24b. The upper and lower perimeter segments 24a, 24b have an upper linear segment 32a and a lower linear segment 32b, respectively, located between first and second curved portions 34a, 34b. The first and second curved portions 34a, 34b each extend from the respective upper or lower linear segment 32a, 32b to the first and second bond lines 30a, 30b. The invention provides a more rounded finish to the mask body perimeter, which enables the mask body to exhibit a more comfortable fit.

Abstract: A mask including: a mask main body 11; and a cord 12 that is placed over both ears or the head of a wearer to fix the mask main body 11 at a specific position on the face of the wearer, wherein the mask main body includes an inner layer 15 that is positioned on the side of the mouth of the wearer when the mask is being worn, an outer layer 17 that is on the outside of the mask when the mask is being worn, and a filter layer 16 that is positioned between the inner layer 15 and the outer layer 17, the filter layer 16 including two or more layers of a melt blown nonwoven fabric layer.

Abstract: A filtering face-piece respirator 10 that includes a mask body 12 and a harness 14. The mask body 12 has a major portion 28 that contains one or more layers of filter media 62 and that has first and second flanges 30a, 30b located on opposing sides of the major portion 28 at first and second lines of demarcation 36a, 36b. The first and second flanges 30a, 30b are capable of folding downwardly toward the major portion 28. The harness 14 includes one or more straps 26, 27 that each have first and second ends 29a, 29b. The first and second straps are secured to the first and second flanges 30a, 30b, such that there is a strap attachment point spaced at least one centimeter from the line of demarcation. The strap tension and spacing from the line of demarcation causes the flap to be folded downwardly into contact with the major portion to improve crush resistance.

Abstract: A respirator mask dispensing system is provided. It includes a carrier material and a plurality of respirator masks mounted in parallel on the carrier material by an adhesive. The carrier material is deformed between adjacent ones of the plurality of respirator masks, the deformation being configured to assist in the tearing of the carrier material at points of deformation. The carrier material with the plurality of respirator masks as mounted therein is wound on the central core member to provide a continuous roll The adhesive bonds more strongly with the respirator masks than the carrier material such that when an individual respirator mask is removed from the carrier material the adhesive will separate from the earner material and remain attached to the individual respirator mask.

Abstract: A mask includes a frame, ear fasteners, a resisting portion and a covering piece. The frame is of an arcuate shape approximating a person's face curve, having two ends respectively connected with the ear fastener and an intermediate portion extending downward to form a support portion, and further provided with a projecting stud protruding inward and having a first fastening portion and a first engage portion. The resisting portion is disposed with a second engage portion to be engaged with the first engage portion for combining the resisting portion with the projecting stud. The covering piece is formed with a second fastening portion corresponding with the first fastening portion of the projecting stud. The second fastening portion of the covering piece is engaged with the first fastening portion of the projecting stud to have the covering piece mounted on the frame.

Abstract: A detachable adjustable mouth mask includes a base frame member, a shade fastened to the base frame member to provide a curved, surface for covering over the user's mouth and nose, a chin support connector providing a clamping groove and friction ribs for fastening to the base frame member and lugs with radial teeth, a chin support providing connection members pivotally coupled to the lugs of the chin support connector with radial teeth thereof angularly adjustably engaged with the radial teeth of the chin support connector and a spacer block providing a ventilation passage for exhaust of exhaled air, and a pair of ear loops for securing the chin support to the user's ears.

Abstract: The invention features a scented mask system to provide a pleasant smell in an unpleasant environment. The mask is a one piece stretchable material with opening sized to fit around the user's ears. The mask becomes fragrant when nestled inside of a pod having area sized to receive at least one fragrance component such as a fragrant discs or strips which cause the mask to become scented.

Abstract: A filtering face-piece respirator 10 that includes a reusable harness 19, a reusable frame 16, and a replaceable filtering structure 18. The reuseable frame 16 has the reusable harness 14 secured to it and has first and second opposing panels 28a, 28b that define a slot 38 into which the replaceable filtering structure 18 can be manually inserted to be joined to the reusable frame 16 in a removable fashion. The replaceable filtering structure 18 also is able to be separated from the reusable frame 16 by being manually withdrawn from the slot 38. The respirator provides a convenient method for reusing all respirator ports but the filtering structure while protecting the reusable parts from exposure to contaminants.

Abstract: A flat-fold filtering face piece respirator 10 that comprises a mask body 12 that has a transversely-extending line of demarcation 22 and a longitudinal axis 34. First and second weld patterns 32a, 32b are disposed above and not traversing the line of demarcation on each side of the longitudinal axis 34, respectively. Third and fourth weld patterns 32c, 32d are disposed below and not crossing the line of demarcation 22 on each side of the longitudinal axis 34, respectively. Each of the first, second, third, and fourth weld patterns 32a-32d is a two-dimensional enclosed pattern. This combined weld patterns can provide a mask body that exhibits crush resistance without the need for additional or heavier layers, which may cause higher pressure drops across the filtering structure.

Abstract: The present disclosure relates to a face mask for removal of biological and mechanical impurities from breathed and/or exhaled air, comprising an inner textile layer and an outer textile layer, between which there is arranged a filtering layer of polymer nanofibres and/or active layer of polymer nanofibres, which in its structure contains a biocidal substance/s. The outer as well as the inner textile layer are formed of microfibres, while at least the outer textile layer and with it neighbouring filtering or active layer of polymer nanofibres are hydrophobic, and all layers are interconnected by a net of joints, that prevent their mutual motion and reduce permeability of the face mask only minimally. The inner textile layer is on periphery of the face mask provided with a layer of an adhesive for fastening to the face of the user. This method of fixing the face mask to the face secures perfect adhesion of the face mask to the skin along its entire periphery, thus preventing breathing of an unfiltered air.

Abstract: Embodiments of the invention are directed to hygienic devices to control the spread of airborne viruses and bacteria emanating from coughing or sneezing. In one embodiment, the hygienic device is a cough and sneeze arrestor in the form of a “coughing cup.” The coughing cup may incorporate one or more filters with a plurality of apertures of varying sizes and/or no apertures. In some embodiments, the filters may be embedded or infused with a microbicide such as an antibacterial or viricide. The filters may be pre-attached within the coughing cup at certain predetermined locations. The coughing cup may have one or more recesses to accommodate the nose and/or a chin of a person when using the coughing cup.

Abstract: A retractable protective respiratory mask including disposable filters, which protects the respiratory system, covering the nose and mouth during inhalation while breathing in an atmosphere polluted by different agents, such as infectious, virulent, or pathogenic agents, or other toxic substances. The mask also protects non-infected persons from persons infected with a virus, as saliva and sputum expelled when coughing, breathing-out, and/or talking can be deposited inside the mask. The mask can include a collection-container filter, allowing a viral-infected wearer to breathe in a polluted atmosphere, to talk, to cough, to sneeze and/or to deposit saliva and sputum. The mask can be used as any other type of filter mask and/or disposable environmental air mask for industry in general, and also providing protection in rarefied natural atmospheres. The mask can be used as a container or packaging for drugs administered by means of bronchial airways, or as medical or rescue masks.

Abstract: [Object] To provide a porous carbon material that is able to adsorb desired substances efficiently. [Solving Means] A porous carbon material of the present invention uses peat as a raw material, and has a total of volumes of fine pores having a diameter of from 1×10?8 m to 2×10?7 m, obtained by non-localized density functional theory method, of 0.5 cm3/g or more, or has a volume of fine pores obtained by BHJ method of 0.5 cm3/g or more.

Abstract: Sensors (40) are described which comprise a reflective layer (52), a detection layer over the reflective layer (52), a semi-reflective layer (50) over the detection layer (48), and a masking layer (57) affixed to the reflective layer with a high Tg adhesive.

Abstract: A filtering face-piece respirator 10 that comprises a mask body 12 and a harness 14. The mask body 12 includes a supporting frame structure 16 and a filtering structure 18. The frame structure is injection molded onto the filtering structure 18 such that the frame structure 16 becomes bonded to the filtering structure 18. A mask body having such a support structure allows the filtering structure to follow its configuration closely, providing improved aesthetics and collapse resistance to the resulting article.

Abstract: A liner for use with a respiratory mask having a face-engaging portion having nasal pillows is provided, where the liner includes a body constructed from an absorbent material, the body having a first set of apertures and a second set of apertures spaced from the first set of apertures. The first set of apertures receives the nasal pillows, and the second set of apertures is aligned with the nasal pillows when the liner is in a folded configuration.

Abstract: A filtering face-piece respirator 10 that comprises a mask body 12 and a harness 14 that is attached to the mask body 12. The mask body 12 comprises a shaping layer 20 and a filtering structure 22 that contains a filtering layer 32. The filtering structure 22 also comprises an outer cover web 36b that includes colored melt-blown fibers and staple fibers. The use of colored melt-blown fibers and staple fibers in an outer cover web provides the respirator with a mottled colored appearance—that is, the color does not appear uniform over the outer surface of the outer cover web.

Abstract: A respirator 10 that has a mask body 12 and a harness 14 that is attached to the mask body 12. The mask body 12 includes a filtering structure 18 that has an inner cover web 40a, an outer cover web 40b that comprises melt-blown fibers and staple fibers, and a filtration layer 42 that is located between the inner and outer cover webs 40a, 40b. The mask body 12 also has a mesh 20 that is joined to the outer cover web 40b. A respirator having this construction is more resistant to inward collapse of the filter media during breathing and is more aesthetically pleasing.

Abstract: The purpose of the invention is to provide a surgical mask with sufficient antibacterial properties, by uniformly manifesting on the surface of nanofibers a functional material with antibacterial and antiviral properties. The problem is solved by a mask with a functional material which comprises a nanofiber containing at least one base polymer selected from a group consisting of PVA, polylactic acid, fibroin, chitosan, chitin, nylon 6, nylon 6,6, nylon 9T, nylon 610, polyamide, polystyrene, polyacrylonitrile, polyethylene terephthalate, polyvinyl chloride, polyurethane, polyester, zein, collagen and methoxymethylated nylon, and at least one functional substance selected from a group consisting of catechin polyphenols, persimmon tannin polyphenols, grape seed polyphenols, soybean polyphenols, lemon peel polyphenols, coffee polyphenols, phenylcarboxylic acid, ellagic acid and coumalin, and having a diameter of 1 nm to 2000 nm.

Abstract: The present invention relates to a hygienic mask, comprising: a mouth shield made of a transparent and flexible synthetic resin; a semicircular synthetic-resin attachment/detachment frame including a first attachment groove and an attachment protrusion such that the mouth shield can be attached thereto; a synthetic-resin jaw piece including a second attachment groove and a jaw support, the second attachment groove being made so as to receive the attachment protrusion of the attachment/detachment frame; and elastic ear bands provided at either side of the attachment/detachment frame and including ear-fastening rings. The ear-fastening rings are slidably adjustable so as to accommodate different ear sizes such that the ear bands can be hung on the ears and removed from the ears.

Abstract: A facemask to be worn in an enclosed space by a subject having or suspected of having a disease transmitted in exhaled aerosol particles is provided. The facemask comprises an air-permeable body having an outer surface facing away from the face of the subject, an inner surface facing toward the face, an upper edge cephalad, a lower edge caudad, and lateral edges at each side of the face such that the inner surface covers the subject's nose and mouth and is spaced apart therefrom. Moreover, at least a portion of the upper and lower edges is spaced apart from the face, but the lateral edges are not spaced apart. The upward and downward deflection of aerosol plumes exiting the facemask cooperates with airflow in the enclosed space to reduce exposure of occupants of the space to the subject's exhaled aerosol particles.

Abstract: An agrichemical spray mask according to the present invention comprises: a main body (114) which is worn hermetically attached to the face and has an inhalation inlet port (110) and an exhalation outlet port (112); an anti-dust and anti-toxin filter tube (120) which is provided on the outside of the inhalation inlet port (110) of the main body (114) of the mask so as to link to the inhalation inlet port and is provided with an anti-dust and anti-toxin filter (113); and a spray filter tube which is separably fastened to the anti-dust and anti-toxin filter tube (120), has a spray filter (223) provided on the inside thereof, and has a respiration port (220a).

Abstract: A mouth mask includes a base frame member configured to fit the curvature of a human face, a shade fastened to the base frame member to form with the base frame member a curved surface for covering over the user's mouth and nose and having a notch on the middle part of the top side thereof around the user's nose to enhance wearing comfort, a chin support directly and angularly adjustably coupled to the base frame member or vertically and angularly adjustably coupled to the base frame member by means of an adapter member and defining with said base frame member an air hole for guiding out the user's exhaled air, and a set of ear loops respectively connected to the two ends of the base frame member for hanging on the user's ears.

Abstract: The present invention relates to an anti-dust mask. The anti-dust mask (1) includes: a pad part (2) to which a sheet is closely attached to a front surface using thermal press forming, wherein a polyurethane film (202) adheres to the inner surface of the sheet and a spandex fabric adheres to the outer surface of the sheet; a fixture (3) for a filter part, to which the pad part and a disposable filter part adhere; a hemispherical filter part (4) defining a front space to filter contaminated air; and a one-way exhaust valve (8). Curves are formed on the pad part such that the pad part can be closely attached to the curvature of the face. The pad part (2) and internal/external wing parts (201, 302, 201?, and 302?) are sewn or thermally adhered together so as to form an air cushion (7) in the pad part (2).

Abstract: To provide a mask less liable to cause a shift in wearing position. The mask includes a main-body portion for covering a lower face portion of a wearer and a fixation portion, coupled to the main body portion, for fixing the main-body portion to the lower face portion of the wearer. The main-body portion includes: a main-sheet portion; a lower body for holding a lower jaw of the wearer, the lower body being made of a stretchable material and provided across right and left end portions of the main-sheet portion on a lower, inner side of the main-sheet portion; and/or an upper body for holding the nose of the wearer, the upper body being made of a stretchable material and provided across the right and left end portions of the main-sheet portion on an upper, inner side of the main-sheet portion.

Abstract: The present face mask may have a double seal, a triple seal or a quadruple seal, with distinct spacing between each of the seals within a set of seals. Each of the seals within a double seal, triple seal, or quadruple seal may stand alone or may be interconnected to other seals by bridging, where such bridging is formed of the same adhesive as the seal itself. Also disclosed is an after market embodiment where a multiple seal by itself is housed between two sheets of release paper to be applied to a face mask by the user himself when needed. Further disclosed is a multiple seal with bridging applied to a clothing combination, such as to seal sleeve cuffs to a glove.

Abstract: An aspect of the present invention relates to a mask filter, wherein wet nonwoven fabric comprised of synthetic fiber is folded up into a concentric circular pleat form, and the synthetic fiber comprises 10 to 50 mass percent of short fiber A having a fiber length ranging from 0.1 to 1 mm and a fiber diameter ranging from 100 to 1,000 nm, and further comprises binder fiber B having a fiber length ranging from 5 to 10 mm and a fiber diameter ranging from 6 to 15 ?m, and fiber C of greater fiber length and fiber diameter than short fiber A and smaller fiber length and fiber diameter than binder fiber B.

Abstract: A liner for use with a respiratory mask having a face-engaging portion, such as a CPAP mask, includes a body constructed from an absorbent material, the body having an outer edge, an inner edge, and an opening bounded by the inner edge. A perimeter of the outer edge is larger than a perimeter of the face-engaging portion of the respiratory mask for forming an extending portion of the body, and the liner is configured to be releasably held by the mask and a user's face such that the outer edge extends beyond the face-engaging portion.

Abstract: A mask and a method of manufacturing the same that intercept a virus are provided. The mask includes: a mask body; an exhalation module that is formed at one surface of the mask body; and an inhalation module that is formed at the one surface of the mask body and that includes an inhalation filter. The inhalation filter includes an anodized aluminum oxide film.

Abstract: The adjustable mouth shield device provides an adjustably fitted mouth shield with adjustable headband for secure fit. The adjustable headband is fastened to the padded earpiece. The straight first extension from the earpiece is angled downwardly and forwardly to terminate in a swivel joint providing almost 360 degrees of swivel. The second extension is arced both downwardly and forwardly. The u-shaped mouthpiece is fitted to the 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. The inward curves at the distal end of the mouthpiece aid in sliding on the disposable pads that shield a user from objects, foods and other materials.

Abstract: A mask that includes a mask body, a left ear loop, and a right ear loop. The left and right ear loops each comprise a base and a rim that extends from the base and forms an opening. The ear loops are laid out on the contact surface of the mask body such that the rims are inwards of the bases. The bases are joined to the mask body by means of left and right joining parts, each of which has a top joining part, a middle joining part, and a bottom joining part. When the mask is worn, the left ear loop (or right ear loop) is folded at the left joining part (or right joining part).

Abstract: Face masks that are provided in a generally flat configuration and are capable of being expanded to a cup-shaped configuration. Such masks include at least one porous layer that includes at least one pleat and that is capable of being expanded by at least partially unfolding the at least one pleat. The mask further includes at least one stiffening element that comprises at least one engaging feature. Upon expanding the porous layer, the engaging feature engages with the porous layer so as to enhance the ability of the mask to maintain the expanded, cup-shaped configuration.

Abstract: A mask includes a main part and a chin support, the main part has a transparent portion and an opaque portion. The transparent portion has a recessed portion defined in a central portion of an inside thereof so as to accommodate the user's mouth and nose. The chin support is connected to the opaque portion and has a support member and an engaging portion which is engaged with the inside of the opaque portion. The engaging portion contacts the user's chin and support the mask.

Abstract: A plurality of face masks that includes a stack of interfolded face masks comprising a first face mask and a second face mask is disclosed. The first and second face masks each include an elastic nonwoven sheet with an elongated shape and having a central portion and first and second lateral end portions each flanking the central portion on opposite sides. The second lateral end portion of the first face mask is interfolded with the first or second lateral end portion of the second face mask. A dispenser including a container enclosing the plurality of face masks is also disclosed.

Abstract: An exhalate filter medium for a biohazard mask is made of polytetrafluoroethylene (PTFE) and surrounding layers of a wicking material and an antimicrobial material. The exhalate filter may be contained in a removable and replaceable cartridge snap-fit into the surface of a biohazard mask.

Abstract: A foldable dust mask having a foldable shell suitable for covering the nose and mouth of the wearer, a breathing aperture, and a filter patch overlying the breathing aperture on the foldable shell. The filter patch is constructed from a fibrous material sufficient for trapping air particulates, and is affixed to the foldable shell by an adhesive strip around the edges of the filter patch. The foldable shell is reusable, and is attached to the head of the wearer using a strap. An alternate embodiment of the foldable shell contains a chin loop, which can be used to hold a lanyard for ear protection devices.

Abstract: A respirator comprises: a nose and mouth covering porous filter body and a flexible restraining device arranged so that the body may pivot in its vertical plane of symmetry about its nose contact portion, and the restraining device attaches to the body at positions where its restraining force imparts torque in the body about said nose contact portion so that the chin contact portion of said body bears against the user's chin. In use, the resulting chin contact force may be less than the opposing user expiration force on the filter body, so the periphery of the chin contact portion may separate from the user's chin during expiration to benefit user comfort and mitigate eyeglass condensation.

Abstract: A surgical mask provides a wide range of wearers with a good fit and improved comfort, facilitates proper use of the mask, and reduces or eliminates fogging of eyewear, as compared with typical masks. The mask may include a pair of ties that are joined to the upper, central, and lower parts of either side of the body of the mask with the assistance of restraint members. The mask may also include a sealing member that reduces or eliminates gaps between the wearer's face and the upper part of the mask by forming a seal between the wearer's face and the mask in use. In addition, the mask may include a barrier panel that reduces or prevents the wearer's breath from escaping through the mask and rising to the wearer's eyewear.

Abstract: A dust mask, the dust mask being lightweight, disposable and configured for a human face, the dust mask further being substantially continuous, and unitary if desired, and sized and configured to extend from ear to ear and to cover all of and substantially only a mouth, nose and ears, the mask further configured to transmit air inhaled by or exhaled by the user yet substantially completely block at least dust from reaching the nose, mouth and ears of the user. The mask can be further configured to substantially completely block at least one undesired air-borne contaminant in addition to dust and can comprise a central portion covering the user's nose and mouth and two earpieces seamlessly attached to the central portion. The mask can further comprise a pliable, resilient nose bridge that can be adjusted to conform to the nose of the user as well as a variety of other structural elements and configurations.

Abstract: There is provided a mask that includes a mask body and two strings. The two strings hold the mask body at a predetermined position on the face of a wearer by being caught by both ears or the head of the wearer. Folded portions, which are adapted so as to be capable of rising and falling on the surface of the mask body coming into contact with the face of the wearer, are formed on both sides of the mask body.

Abstract: A mask is provided that can inactivate viruses adhering thereto even in the presence of lipids and proteins regardless of whether or not the viruses have an envelope. The mask can inactivate viruses adhering thereto and includes a mask body provided with a member used when the mask is worn and virus inactivating fine particles having a virus inactivating ability and held by the mask body. The virus inactivating fine particles are particles of at least one selected from the group consisting of platinum(II) iodide, palladium(II) iodide, silver(I) iodide, copper(I) iodide, and copper(I) thiocyanate.

Abstract: A mask has a mask body and a pair of ear straps. The mask body includes an outer layer sheet and an intermediate layer sheet. The outer layer sheet is formed of hydrophobic fibers. The intermediate layer sheet is laid on the outer layer sheet so as to be located on a wearer's side of the outer layer sheet when the mask is worn. The intermediate layer sheet includes a first fiber layer which is formed of polyolefin fibers containing an inorganic antimicrobial agent and a second fiber layer which is formed of polyolefin fibers and has a larger fiber diameter than the first fiber layer. The fiber diameter of the first fiber layer is within a range of 0.5 to 2.8 ?m and the ratio of a particle diameter of the inorganic antimicrobial agent with respect to the fiber diameter is within the range of 0.1 to 6.0.

Abstract: Ergonomic protective air filtration devices and methods for manufacturing the same are disclosed herein. An ergonomic protective air filtration device includes a stack of at least two layers of an air permeable material, the stack forming a body, a periphery, and a back; a plurality of intersecting three-dimensional V-shaped pleats extending from the periphery and into the stack of layers, so the back of the device defines a breathing chamber adapted to cover a mouth and a nose of the wearer; and a retaining means engaging the body of the device to secure the device to a face of the wearer and to create the breathing chamber. The ergonomic protective air filtration device provides protection against contaminated droplets, fluid splashes, solid particulates, pathogenic microorganisms, or aerosoled air pollutions.

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.