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.

Various embodiments provide a speech diaphragm module including: a body; a lid secured to the body to form an enclosed volume therein; a resilient film secured within the enclosed volume along an attachment joint formed around a periphery of the resilient film; and a tensioning feature arranged to displace an operative portion of the resilient film relative to the attachment joint to apply a tension across the resilient film. The attachment joint can be a solid state weld joint between the resilient film and the body to apply an initial tension across the resilient film, and the tension applied by the tensioning feature can be greater than the initial tension applied by the attachment joint. Some other embodiments provide a method of manufacturing a speech diaphragm module, a respirator, and a kit of parts for forming a speech diaphragm module.

The present disclosure provides a VR face mask and a manufacturing method thereof. The VR face mask includes a mask body, and a first PU covering layer arranged on a surface of the mask body to be attached close to a human face. The mask body includes a mask bottom layer arranged away from the first PU covering layer, and a filling layer arranged between the first PU covering layer and the mask bottom layer.

A mask to administer breathable gas to a user may include a body structure having a connection opening to connect to a line device to deliver the breathable gas; a sealing lip device to seal against the user's face, the sealing lip device joined to the body structure, and the sealing lip device having an upper bridge portion structured to cross the bridge of the user's nose in use, a pair of side portions structured to be positioned along corresponding side surfaces of the user's nose in use, and a lower bridge portion structured to cross the user's upper lip or chin region in use; and a pair of beadlike gel cushions, each positioned in a corresponding one of the side portions.

A respiratory apparatus may employ ultrasonic welds. The ultrasonic welding may be used to join a variety of headgear, mask and accessory components. This process may enhance comfort, fit and/or performance of the joined components and/or overall mask assembly. A component may be a single layer component such as a textile or fabric, or a composite or multiple layer component such as fabric and foam composites, or outer fabric layers and inner spacer fabrics. Further, a component may be a strap, some other headgear component, a mask component, an accessory component or the like.

A respiratory protection composite facepiece is disclosed and includes a polymeric rigid facepiece body portion having a first surface and a second surface and a silicone sealing facepiece element chemically bonded at least one of the first surface or the second surface. The first and second surfaces can be opposing major surfaces. A second silicone element is chemically bonded to at least one of the first surface or the second surface. Methods of making the same are also disclosed.

A molded face mask for treating a user's face, the molded face mask comprising a rigid, inflexible body molded to the user's face, and a coupling means for coupling the molded face mask to the user's face. The body comprises a top edge, a bottom edge, a left side edge and a right side edge and at least one nostril opening disposed proximate the user's nostrils.

A respiratory protection composite facepiece is disclosed and includes a polymeric rigid facepiece body portion having a first surface and a second surface and a silicone sealing facepiece element chemically bonded at least one of the first surface or the second surface. The first and second surfaces can be opposing major surfaces. A second silicone element is chemically bonded to at least one of the first surface or the second surface. Methods of making the same are also disclosed.

A method and associated system for cutting and placing individual nose wires in a facemask production line include supplying a continuous wire from a supply source to a cutting station where the continuous wire is cut into individual nose wires having a defined length. The nose wires are then conveyed to a treatment station prior to being deposited onto a carrier web. At the treatment station, a surface treatment is performed on a side of the nose wires that results in an increased surface attachment of the nose wires to the carrier web.

Provided is a method of producing a layered article by which a sufficient production speed can be achieved, and preferably, a variation in fusion strength can be suppressed and hence a variation in product quality can be reduced. The method of producing a layered article of the present invention includes fusing at least part of a single-layer body or a laminate including at least one layer including a non-woven fabric of fiber having a fiber diameter of 100 m or less through ultrasonic welding.