A door assembly includes a subdoor. The subdoor is selectively openable by pivoting relative to the main door and includes a window panel (typically glass). An array of screens is disposed in front of the subdoor and includes a plurality of relatively smaller screens that are physically separated from each other by a lattice. The structure of the door allows for greater ease of assembly while providing an appearance of having true divided lights. Related methods are also discussed.

A closing body allows closing and opening an access opening or a passage of a room in case of a pressure difference between an interior and exterior of the room. A closing fitting set and a door leaf are disclosed, by means of which closing fitting set and door leaf a closing body can be formed. The closing body is in the form of a pivotable door, a pivotable window or a pivotable flap. A valve device is provided on the closing body, which valve device effects a temporary pressure equalization during the opening or closing of the closing body. The valve device is in the form of a valve flap, and a release mechanism is provided, which opens the valve device. A locking fitting is provided for the closing body, and the release mechanism is coupled, for actuation, to the locking fitting of the closing body.