A patient interface includes a sealing arrangement adapted to provide an effective seal with the patient's nose, an inlet conduit arrangement adapted to deliver breathable gas to the sealing arrangement, and a cover that substantially encloses the sealing arrangement and/or the inlet conduit arrangement.

A half mask for the face, including one or more covering areas for covering one or both respiratory openings of the person wearing the half mask and one or more fastening areas for fastening the half mask to its wearer, particularly to one or more of their head, neck, and throat, one or more UV-C disinfection units for disinfecting the inhaled and exhaled air and one or more devices for fitting the half mask tightly around the face of its wearer are provided.

An air delivery system for providing a supply of air from a source of air at positive pressure to an interfacing structure located at the entrance to the airways of a patient includes a manifold adapted to connect with the supply of positive air pressure and at least one tube connected to the manifold and adapted to deliver the supply of air to the interfacing structure. Each tube is structured to allow movement between an open phase in which the tube allows the passage of air and a collapsed phase in which the tube is collapsed. Each tube is structured such that weight of a typical patient's head against bedding apparel is sufficient to collapse the tube from the open phase to the collapsed phase.

One or more embodiments of the present disclosure includes antiviral masks with at least one metallic layer. In one or more embodiments, the at least one metallic layer can be a copper based metallic layer and can be shaped as a facial mask that covers the exposed orifices of a user's face, including the nose and mouth, and can be used independently of other layers and/or other masks.

A mouth includes four pieces of plastic foil or layers placed against each other, in particular a first external layer, a first internal layer, a second internal layer and a second external layer, these layers having at least partially corresponding peripheral edges, and wherein the four pieces of plastic foil or layers are connected along a first fraction of their corresponding peripheral edges by a quadruple welded joint connecting the four layers.

The disclosure relates to a respirator mask including a mask body and at least one filter for filtering a fluid (e.g. air) flowing through the mask and/or the mask body. The at least one filter may include one or more of: an Ultra-Violet (UV) filter and/or UV emitter, a filter fleece, and/or an electrical and/or electrostatic filter.

A facemask assembly has a three dimensional shape to fit a user's face while covering a user's mouth and nose and providing a space in front of the user's mouth and nostrils. The facemask assembly includes an outer shell layer and an inner lining layer connected to provide a facemask panel having the three-dimensional shape and an interior space to retain a filter. A face stiffener extends through the interior space along a mid-region and curved away from the user's mouth to assist in stiffening the facemask panel and in keeping the three-dimensional facemask shape spaced from the user's mouth. Magnets can also be used to aid is retaining the facemask assembly as a shaped unit. An adjustment tab can aid in adjusting the facemask assembly on the face. The facemask assembly can be pulled down when safe while retaining it three-dimensional shape.

Air filtration masks are provided. In one exemplary embodiment, an air filtration mask includes a housing configured to be worn over at least a portion of a face of a user, an inhalation airflow channel formed within the housing and configured to receive an inhalation airflow, an exhalation airflow channel formed within the housing and downstream of the inhalation airflow channel, configured to receive an exhalation airflow that is different from the inhalation airflow, an inhalation filter structure in fluid communication with the inhalation airflow channel to allow the inhalation airflow to pass therethrough, the inhalation filter structure configured to yield a filtered inhalation airflow, and an exhalation filter structure in fluid communication with the exhalation airflow channel to allow the exhalation airflow to pass therethrough, the exhalation filter structure configured to yield a filtered exhalation airflow.

An air delivery system for providing a supply of air from a source of air at positive pressure to an interfacing structure located at the entrance to the airways of a patient includes a manifold adapted to connect with the supply of positive air pressure and at least one tube connected to the manifold and adapted to deliver the supply of air to the interfacing structure. Each tube is structured to allow movement between an open phase in which the tube allows the passage of air and a collapsed phase in which the tube is collapsed. Each tube is structured such that weight of a typical patient's head against bedding apparel is sufficient to collapse the tube from the open phase to the collapsed phase.

A kit includes at least one facemask configured to cover a respective user's mouth and nose. The facemask contains at least one layer impregnated with a first chemical. When the facemask covers the respective user's mouth and nose, airborne particles of the first chemical are released from the at least one layer through the user's breathing. A sensor is configured to measure airborne concentration of the first chemical. A processing circuitry is configured to receive outputs of the sensor, to calculate a change in airborne concentration of the first chemical, and to issue a notification when the airborne concentration of the first chemical increases at above a predetermined rate.