Abstract: A breathing mask has a mask body covering the mouth and nose, which may form an air inlet and an air outlet provided with a check valve. The air inlet may have a rotary slide valve in a seat which has at least one air inlet opening surrounding the central air outlet in sections. The rotary slide valve may cover the air inlet opening differently depending on its rotational position. The check valve for the air outlet may have a centrally-held membrane which covers an air outlet opening. The air outlet may form a guide cylinder for the rotary slide valve. The rotary slide valve may form the air outlet opening covered by the membrane.

Abstract: The remote control device contains two keypads, of which the second keypad is able to be slid into a housing or extracted from it. A sensor detects the sliding position of the second keypad and generates an output signal, that assigns differing control signals to preset keys of the first keypad depending on the sliding position of the second keypad. Additionally the remote control device has two transmission devices with differing directions of emission, with always only one transmission device being activated and in fact depending on the output signal of the sensor.