A respiratory mask consists of a non-return valve (green upper part, red lower part and a membrane) and a plastic film with printed instructions for use in the form of pictures. The respiratory mask is packed in a plastic pressure seal bag. 2. intended use The device is used as an aid for mouth-to-mouth resuscitation of injured persons. The device also serves as a barrier and to reduce contact between the rescuer and the injured person's blood, secretions, vomit and other body fluids. The mask enables effective ventilation and protects both the rescuer and the patient from infection. It is easy to use and can be life-saving in emergencies. Ideal for use at home, in the car or at work.