Abstract: The present disclosure relates to a respiratory system for exercising and analysing respiration of a subject comprising: a breathing unit comprising: a mouthpiece connected to: at least one inhalation air way, at least one exhalation air way, and an electronic sensor unit comprising at least one pressure gauge for measuring air pressure in the mouthpiece, and a processing unit for collecting/storing and/or transmitting air pressure data.

Abstract: The present disclosure relates to a respiratory system for exercising and analysing respiration of a subject comprising: a breathing unit comprising: a mouthpiece connected to: at least one inhalation air way, at least one exhalation air way, and an electronic sensor unit comprising at least one pressure gauge for measuring air pressure in the mouthpiece, and a processing unit for collecting/storing and/or transmitting air pressure data.

Abstract: The invention provides a pump assembly comprising a suction pump and a safety valve arranged between the pump inlet and a fluid inlet for the assembly. The safety valve comprises an inlet valve and a moveable control member acting on the safety inlet valve, wherein the control member is operatable between an initial position in which the safety inlet valve is closed, and an activated position in which the safety inlet valve is open, and wherein the control member is moved from the initial to the activated position by means of suction action from the pump. By this arrangement the opening of the safety valve is positively controlled by the suction provided by the pump whereas the safety valve is closed during non-operation of the pump.