According to Decision 609 "Occupational safety and health in the event of the occurrence of human influenza that cannot be adequately prevented by vaccination" of the German Committee on Biological Agents (ABAS), the following is recommended:
At least FFP2 masks should be worn by medical personnel in the following cases:
FFP3 masks must be worn during activities where the patient's cough is provoked, e.g. during bronchoscopy, intubation or aspiration. Personal protective equipment consists of a protective gown, disposable gloves, tightly fitting respiratory masks (FFP2, or FFP3 or respirator) and safety goggles. These must be put on before entering the patient's room and left on before leaving the airlock/room.
Before entering, one should disinfect one's hands and then put on the protective equipment directly from the sterile packaging in a tight fit. Particular attention should be paid to the fit of the close-fitting respirator and slippage should be prevented.