Abstract: An artificial ventilation system includes a patient interface adapted to contain a volume in communication with at least the mouth and nose of a patient. The patient interface is provided with a through hole. The system also includes a nasal cannula connected to the through hole of the patient interface; and a connection element snugly fitted in the through hole and sealingly fitted onto the nasal cannula.

Abstract: A hood for non-invasive ventilation of patients, comprising a containment body provided with at least one optically transparent portion and with a collar that can be mated hermetically to the neck of the patient whose head is accommodated within the containment body, the hood further comprising an annular body, on which a cushion is heat-sealed or fixed and which can be associated around the neck and can be fixed to the containment body, the annular body fixed to the containment body is substantially rigid and is adapted to act as an abutment element, together with the cushion, for the collar.