Spencer 190 is a pulmonary ventilator of the latest generation, with a one stroke cycle, limited to pressure and controlled by a powerful micro-processor. It guarantees flowing pressure, respiratory frequency and constant fraction of inspired oxygen, independent from the insufflation pressure. There are three modes of ventilation: controlled, assisted and assisted/controlled (ABS). The respiratory act is completely monitored. When ABS is inserted the form of the luminous wave allows easy synchronisation of the instrument with the patient. The safety of the patient is guaranteed by monitoring systems and alarms of the airway pressure, power pressure and apnea. The compact structure, limited weight, simplicity of regulation and control of the parameters, the incorporated visual and acoustic security devices allow safe use even by untrained lay people. The control instruments are designed in such a way as to allow clear and immediate reading. The indications have been reduced to the essentials and the commands are logically positioned. Complete with PVC patient circuit tube, Spencer Mask size 4, non-rebreathing valve. The Kompak and Porta Vent version are available.