Abstract: A patient safety shield, and its method of use, features a deflector shield that closes gaps between the bottom profile of safety eyewear worn by the patient and the patient's cheek area. The deflector shield, when positioned, oriented, and profiled across the bridge of the patients nose and under the patient's eyewear, deflects fine infectious and or injurious debris, which originates in the patient's oral cavity, from being ejected off moving parts of dental tools during a dental procedure. The deflection by the deflector shield prevents potentially infectious or injurious debris from reaching and harming the eyes of the patient that may enter through the bottom gaps.

Abstract: The present disclosure provides a respiratory protection device made of soft material comprising folds in zig-zag pattern on the main body and may be adhered to wearer's face by adhesives instead of straps. The respiratory protection device with folds is expandable from flat-fold configuration to open ready-to-use configuration, collapsible from the open ready-to-use configuration to the flat-fold configuration, and flexible to keep adhered to wearer's face when the respiratory protection device is dragged in conjunction with the movement of the wearer's face. The folding structures not only reduce the storage volume but also support the main body of the respiratory protection device to provide large air chamber for breathing comfortably in a completely sealed space. The present disclosure also provides a process of manufacturing the respiratory protection device by folding and fixing barrier layers and applying adhesives on the barrier layers.

Abstract: Headgear for use with a respiratory mask is described. The headgear can include a continuous and substantially curved elongate member extending in use below a user's nose and at least two headgear straps capable of attachment to the ends of the elongate member. A mask attachment on the elongate member is disposed to sit below or on one of said user's nose, mouth, upper lip and an inlet to the mask. The attachment is capable of receiving the mask.

Abstract: An entrainment-based filtering system for use in connection with a facemask or respirator that includes: a filter housing defining an interior volume comprising at least one airflow pathway having an airflow pathway length that is longer than the length of the interior volume and spaced within the interior volume; and a plurality of entrainment substrates. The plurality of entrainment substrates is positioned within the at least one airflow pathway and the plurality of substrates and the dimensions of the at least one airflow pathway together function to entrain particles on the surface of the chemically coated entrainment substrates and prevent at least 95% of particles traveling through the at least one airflow pathway from exiting the entrainment-based filter.

Abstract: An underwater mask includes a frame, a transparent part, a seal part mounted on the frame, and a snorkel. The seal part has a partition wall forming an upper and a lower chamber, the lower chamber receiving nose and mouth of the user. The two chambers communicate through a passage in the partition wall and a one-way valve so that air can pass only from the upper chamber to the lower chamber. The snorkel has first and second channels through which the upper and respectively lower chamber communicate with the outside. A connection end between snorkel and mask is fastened at an opening of the seal part to put the first channel of the snorkel in communication with the upper chamber of the mask, and further has a side inlet for a corresponding exhaust tube that puts the lower chamber in communication with the second channel of the snorkel.

Abstract: A mask or shield comprising a flow of positive pressure air directed through substantially opposing jets that creates a stream of laminar flow filtered air to create a turbulent air pocket therein for supplying filtered breathing air to a wearer's face and to exclude outside unpurified air. Also a mask or shield comprising a flow of positive pressure air directed via a powered impeller unit that is configured to distribute positively pressurised filtered breathable air inside the face mask in a substantially 360° plane or arc substantially parallel to the internal surface of the face mask and to exclude external unpurified air. The mask is separated from and does not form a seal around a wearer's face unless required such as in a deadly environment or malfunction.

Abstract: An apparatus, system and method to prevent fogging of glasses worn by a wearer has a mask made from a filtration material. The mask has a left side and a right side. A strap extends from the mask to hold the mask in position on the wearer. A vent is positioned on both the left side and the right side of the mask, in one version. An adhesive foam layer extends across the mask and the strap to attach the mask to the glasses. Arms may extend from the glasses toward ears of the wearer. The adhesive foam layer attaches the mask to the arms of the glasses. A flap extends from the foam layer. Pulling the flap removes the adhesive foam layer from the glasses.

Abstract: An interfacing structure is arranged to cooperate with a frame to contact with the skin of a patient. The interfacing structure includes a clip portion joined to a cushioning component. The frame is more rigid than the clip portion and the clip portion is more rigid than the cushioning component.

Abstract: A filtering face-piece respirator 10 having a mask body 12 formed of a filtering structure 16. The mask body 12 has at least one transversely extending stiffening member 50, formed by an s-shaped or tri-fold pleat permanently connected, such as by welding. The at least one stiffening member 50 increases the integrity of the mask body 12, when in the opened cup-shaped configuration, inhibiting collapse of the mask body, due to, for example, increased pressure drop across the mask body 12 due to dirty or moisture laden air.

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: The breathing assistance apparatus has a patient interface with a body section adapted to cover the nose, or nose and mouth of the patient. The apparatus includes a sealing interface, including at least an outer sealing member. The outer sealing member has a periphery that is attached to the body section in a sealing manner. The periphery is substantially rigid compared to the remainder of the outer sealing member. The outer sealing member is adapted to substantially seal around the facial contours of the patient to provide a sealed fluid communication to the respiratory tract of the patient. The sealing interface may also include an inner sealing member.

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: An air filtering soft face mask has a soft body formed of multiple layers of material, including at least one layer of air filtering material capable of filtering selected contaminants from air. The body has an arcuate or peaked nose engaging edge adapted to engage a nose of a wearer and terminating in remote ends that extend downwardly. The body has a chin underlying edge adapted to underlie a chin of a wearer and terminating in remote ends that extend upwardly. The remote ends of the chin underlying edge being secured to the remote ends of the nose engaging edge to form side edges. Jaw movement tensions the body, forcing the nose engaging edge into firmer engagement with the nose of the wearer, forcing the chin underlying edge into firmer engagement with the chin of the wearer and tensioning the side edges into firmer engagement with the cheeks of the wearer.

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 concerns a protective headgear comprising a respirator (2) capable of being connected to a breathing mixture source, an eye protecting shield (5) and first (32) and second (56) lock elements, respectively located on the respirator (2) and on the shield (6) and adapted to co-operate with each other to secure the shield (6) to the respirator (2), when the respirator is in its use position on the user's face, the first (32) and second (56) lock elements being adapted to be mutually engaged and interlocked by a movement bringing the shield (6) closer to the respirator (2), from above.

Abstract: A breathing apparatus used in conjunction with eye glasses, goggles, face masks or helmets each containing eye protection elements to restrict/eliminate the presence of breath vapor condensing on the surface of said equipment containing eye lenses while being worn primarily during sport and recreational activity. The breathing apparatus, through the containment of breath vapor at its source, moves vapor away from said eye lenses by use of a snorkel assembly containing: mouthpiece, multi-port manifold, flexible tubing terminating in dual function breath exhaust/entry sub-assembly. Device may be positioned above wearer's shoulders and secured to his/her neck by means of a tension and position-adjusting strap. Not only is this apparatus presented as an ACCESSORY to be worn along with said eye protection sports equipment but will also be INTEGRATED INTO THE DESIGN AND MANUFACTURE of a face mask for use in sport and recreation activities such as paintball.

Abstract: The present invention provides an air-purifying respirator facepiece with a removable, one-piece filter element connector. It also has a removable component housing in the lens as well as a nosecup without inhalation valves that prevents fogging of the portion of the lens used for viewing.

Abstract: Disclosed is a novel light weight inexpensive full face mask in which the air filtration function is carried out by an air filtration shell which has at least a portion of its surface made of a porous filtration material. The air filtration shell also acts as a breathing chamber. Also disclosed is a lower cost yet an effective method for providing a cooler breathing chamber and minimizing the volume of re-inhaled exhaled-air in any full face mask.

Abstract: A personal breathing device for filtering, diffusing, and conditioning air inhaled by a person. The device includes an eyewear frame with an attached nose piece and air-permeable membrane which is positioned to surround the nose and permit normally inhaled volumes of air to pass through the membrane as the air is inhaled, and thereby filter and condition the inhaled air. The device can be conveniently placed on and removed from the face, does not obstruct speech, and is suitable for wearing during a variety of normal daily activities to filter and condition inhaled air. The air permeable membrane can be impregnated with various liquids or other agents to enhance filtering and antimicrobial functions, or to provide cooling, moisturizing, or scenting of the inhaled air. The device can be provided with a detachable air permeable membrane which can be easily replaced as needed.

Abstract: A respiratory mask includes a shield and a mask body. The shield includes an air-impermeable bent sheet that defines a rim-receiving recess. The mask body is detachably connected to the shield and includes a rim that is received in the rim-receiving recess and that defines a chamber therein. The shield cooperates with the mask body to define a gap therebetween. The rim is formed with at least an aperture that is in spatial communication with the chamber and the gap. A filter sheet is permeable to air and is attached to the rim to cover the aperture.

Abstract: A vapor phase treated electret filter media includes an additive or mixtures thereof that enhance the charge stability of the media. The filter media achieves acceptable alpha values for a range of filtration challenges without significant decay in alpha values over time. Preferred charge additives include fatty acid amides and mixtures thereof. Exemplary vapor phase deposition monomers include fluorinated monomers.

Abstract: A smoke mask includes a generally planar breathing filter sized to cover the nose and mouth of a user. The breathing filter may be either dry or moistened, and has a filter efficiency of at least about 95%, meaning that at least about 95% of charge neutralized particles having an approximate size of 0.3 micrometers are removed from air flowing at a rate in a range of about 81 liters per minute to about 89 liters per minute, with a total filter load of at least about 200 milligrams of the particles. A transparent eye shield, which may be either a plastic film or goggles, is attached to the breathing filter. Pressure sensitive adhesive is located on the peripheral edge of one surface of the mask structure for securing the mask to the face of the user.

Abstract: The present invention provides an air-purifying respirator facepiece with a removable, one-piece filter element connector. It also has a removable component housing in the lens as well as a nosecup without inhalation valves that prevents fogging of the portion of the lens used for viewing.

Abstract: Disclosed is a disposable gas mask usable for emergency rescue purposes to save human lives from toxic gas or germ attack. The disposable gas mask includes a rectangular thin body, an eye protection window arranged at an upper portion of the body, a filter unit arranged at a lower portion of the body, a peripheral adhesive band formed at an inner surface of the body along a peripheral edge of the body while surrounding the eye protection window and the filter unit, a vertically-extending folding line centrally provided at the eye protection window, an indicator arranged between the eye protection window and the filter unit and adapted to indicate the application purpose of the gas mask, and a sealing wax band formed at an inner surface of the eye protection window and an inner surface of the filter unit inside the adhesive band along a peripheral edge of the eye protection window and a peripheral edge of the filter unit.

Abstract: A face mask is disclosed that includes a mask portion, a resilient member (e.g., a pillowed web), and, optionally, an adhesive portion. The resilient member and the adhesive portion are alternately positionable between the mask portion and the wearer to inhibit the passage of vapor between the mask and the wearer, which prevents fogging of the wearer's eyewear. A method for using the face mask is also disclosed.

Abstract: A smoke mask includes a moistened generally planar breathing filter sized to cover the nose and mouth of a user. A transparent eye shield, which may be either a plastic film or goggles, is attached to the breathing filter. Pressure sensitive adhesive is located on the peripheral edge of one surface of the mask structure for securing the mask to the face of the user. A release sheet covers the adhesive so that the adhesive is exposed upon removal of the release sheet. One or more slits in the peripheral edge of the mask enable the mask to adapt to the contour of the face of the user. A pull-apart tab facilitates opening of the mask structure by the user. The smoke mask may be used in combination with a waterproof canister, in which the mask is stored in a wetted and rolled condition. The canister may include threaded halves, or may be sealed by a pull-off cover or a threaded cover.

Abstract: An improved respirator filter assembly includes an integral fit seal check mechanism easily controlled by the user. Upon release, the seal check mechanism permits free airflow through the filter assembly. The seal check mechanism includes an air passageway having a sealing rim and a blocking member which is selectively movable between engaged and disengaged positions relative to the sealing rim. A spring element is disposed to releasably maintain the blocking member in the disengaged position during filter assembly operation, wherein a user may actuate the blocking member against the bias of the spring element to move the blocking member into the engaged position to substantially prevent entry of air into the air passageway during seal checking.

Abstract: A regulator assembly is provided for use in a respirator system to supply a regulated flow of air to a respirator head piece. The respirator assembly comprises a housing (15) having an air inlet port (17) for connection to a source of air at comparatively high pressure, and an air outlet port (23) for connection to the respirator head piece. The housing (15) contains an air pressure-reduction stage (19) in communication with the inlet port (17), and a noise-reduction stage (21) between the pressure-reduction stage and the outlet port (23). The noise reduction stage (21) comprises two, spaced, muffler discs (41, 43) the first of which is positioned adjacent the air outlet (39) of the pressure-reduction stage (19). A deflector plate (47) deflects the airflow from the pressure-reduction stage (19) through the first muffler disc (41), and thereby diffuses the air flow before it reaches the second muffler disc (43).

Abstract: A cold weather air warming apparatus for permitting a user to breathe air warmed by the body. The cold weather air warming apparatus includes a mouthpiece that has a mouth engaging portion, a coupling portion, and a lumen extending through opposite ends of the mouthpiece. A length of body tubing has opposite open first and second ends. The first end of the body tubing is coupled to the coupling portion of the mouthpiece. The length of body tubing is flexible and adapted for wrapping around a torso of a user, the open second end of the length of body tubing is in communication with the lumen of the mouthpiece.

Abstract: A surgical mask adapted to cover the nose, mouth and eyes of the wearer is disclosed. A transparent lens component is positioned to cover the eyes of the user. A light-transmitting filter element being hingably connected to the upper edge of the transparent lens. The filter may be positioned selectively into overlapping relation of the lens to provide a filtering function or folded 180° to remove the filter from overlapping relation of the lens panel. The filter and lens panel are connected such that a degree of relative lateral movement between the components is provided whereby the filter may be moved between overlapping and non-overlapping conditions of the lens without removing the mask from the wearer.

Abstract: A disposable mask is provided having a body with an opening sized to cover the nose and mouth of a wearer and a fastening system to secure the body to the wearer's face. The body has top and bottom edges with the top edge operable to extend across the nose and cheeks of the wearer and the bottom edge to extend below the mouth of the wearer. The body includes a first portion which generally contacts the face of the wearer and is formed from a material that is shapeable around the face of the wearer. A second portion is attached to and extends from the shapeable material and is formed from a disparate material that filters aerosol particles from the air that passes through it.