Safety device comprises a detector for air impurities and for converting an inlet signal into an output signal which reproduces the value of one or more condition parameters, and safety closure coupled with a drive to close the flow channel

摘要

Safety device comprises a detector for air impurities and for converting an inlet signal into an output signal which reproduces the value of one or more condition parameters, and a safety closure coupled with a drive to partially close the flow channel or inlet of an air treatment unit which is arranged in the flow direction of the external air after the safety closure. Safety device comprises a detector (2) for air impurities and for converting an inlet signal into an output signal which reproduces the value of one or more condition parameters; and a safety closure coupled with a drive to partially close the flow channel (3) or inlet of an air treatment unit which is arranged in the flow direction of the external air after the safety closure. A room (14) is provided with a waste air channel (19) which is connected to the air treatment unit. Preferred Features: The detector for air impurities is a sensor for chemical material, a sensor for biological organisms, a dosimeter or a device for determining air-carried particles. The dosimeter is a luminescence dosimeter. A first air flow sensor (4) is arranged in the flow channel and is connected to a control device (18). The detector for air impurities is arranged in the end region of the suction opening of the flow channel and/or in the external air suctioning device (1).