Abstract: A forehead support for a facial mask is adapted to be moveable between a first position with respect to a frame of the mask and a second position with respect to the frame. The forehead support includes a biasing mechanism that urges the forehead support in the second position. A method of positioning a forehead support with respect to a frame of a patient interface includes positioning the forehead support and patient interface assembly on a face; disengaging a forehead support locking mechanism; allowing the forehead support to move from a first position to a second position; and engaging a forehead support locking mechanism.

Abstract: A respiratory mask includes a mask frame and a forehead support provided to the mask frame. The forehead support includes a base extending from the frame. The base includes a flexible portion along at least a portion of its length including a material and/or physical characteristic that allows the base to flex from an original, unloaded position.

Abstract: The liquid-bearing domestic appliance, in particular domestic dishwasher, is provided with at least one antibiotic agent, in particular in the sump and/or the tub and/or an insert.

Abstract: Joint formers for coupling between duct components having different cross-sections include a core having holes for fixing members and an opening provided with a hollowed out recess. In the opening there is formed at least one series of stepped spot-faced edges forming a series of cavities, each cavity rotated with respect to the others.

Abstract: A dual mode filter has a hollow cylindrical longitudinal outer body which is divided by transversely extending disk-like separation walls into a plurality of internal cavities. At least one coupling opening in each separation wall permits coupling of energy from one cavity to another. Said coupling opening being preferably an arcuate opening, in each separation wall, which extends along a constant radius at the outer periphery of the separation wall and over a limited angular span. When the openings are two, they are spaced 180.degree. apart, i.e. opposite one another. Adjacent separation walls are rotatably displaced 90.degree. with respect to each other so that their respective coupling opening(s) is (are) misaligned by 90.degree.. One respective adjustment screw is provided for each separation wall which penetrates through a hole in the outer body into one of the coupling openings in the given separation wall.