Abstract: Disclosed is an analysis system for determining the deposition of an aerosol for a breathing apparatus with an analysis device comprising an air duct, a first air sensor, a control unit and an application component, wherein the air duct is set up to guide air along the first air sensor to the application component and vice versa, the first air sensor is set up to detect at least a first air flow parameter of the air guided along the first air sensor, and the control unit is set up to control the first air sensor in such a way that a time characteristic of the first air flow parameter can be measured as a first measurement result, and the first measurement result can be transmitted to an assessment device.