A dry powder inhaler (1) is to be made available, with which a particle size and particle size distribution preferred for inhalation are to be achieved and by means of which as high a line particle fraction as possible is to be realized. This is achieved by means of a dry powder inhaler (1 ) that is characterized in that provided in the inhaler (1) is a nozzle (10) through which the aerosol (9) flows before leaving the inhaler (1).