Abstract: A cough apparatus comprises a blower with a suction opening, a blow-out opening, a drive motor, and a rotor coupled to the drive motor for conveying a gas from the suction opening to the blow-out opening depending on a motor speed; a pressure port; a patient port; a connection channel connecting the pressure port to the patient port; a coupling device switchable between an insufflation position and an exsufflation position; a pressure sensor designed to detect a pressure applied at the patient port and to generate a pressure signal indicating the detected pressure; and a control device for controlling an operation of the cough apparatus and being designed to carry out the method specified in the claims.