With the HOMOTH Rhino 4000-M rhinomanometry-module a measuring-method was evolved, allowing the adaptation via nose plugs and alternatively via a face mask. The method is used in the doctors practice as well as in clinics. All functions, data and diagrams are shown on the PC monitor. Herewith the results can be verified before documentation to avoid misprintings. The time-saving adaptation via nose-plugs allows a direct use at the doctors working-place, so the measurement fits into the normal examination. All calculation of flow, pressure, percentage and resistance-coefficient are done in realtime, so by the end of the measurement the complete results are present. Persons with bearts, long hair and children with fear of masks, can be measured without any problems. For clinical use a face-halfmask is available.