A method is provided for diagnosis of the severity of a condition in an eosinophilic inflammatory disease such as nasal polyp and for prediction of the recurrence of the disease. The product comprises at least two overlapping layers, each of which has a different fiber composition, and in the production of the product, chemical short stock is used at least partly. The sensor connects to the sampling filter and senses the presence of a predetermined chemical in the gas that has been filtered by the sampling filter. The ECG signal is amplified non-linearly and three windowed threshold signals are derived. The locating device is advantageously implemented in the form of a restraint chock for the wheels of the vehicle or in the form of any other means for immobilizing the latter at the dock.