An aerosol generator for generating an inhalation aerosol from an inhalation liquid, comprising: an intake duct for guiding air to a mouth of a user, and a nozzle, arranged for injecting the inhalation liquid into the intake duct, - wherein the nozzle is arranged for generating a Rayleigh droplet train of the inhalation liquid propagating along a droplet train propagation path, and wherein the intake duct comprises: - at least two first orifices, each of the first orifices having a discharging direction in which respective first air streams discharge from the respective first orifices, characterized in that the first orifices are arranged to provide the first air streams in mutually colliding discharging directions, the discharging directions of the first orifices being directed towards the droplet train propagation path, the at least two first orifices being configured for providing the respective first air streams to flow from the respective orifices along the respective discharging directions to the droplet train propagation path so as to interact with each other in the droplet train propagation path, wherein a droplet size decreases with increasing air flow. an intake duct for guiding air to a mouth of a user, and a nozzle, arranged for injecting the inhalation liquid into the intake duct, - wherein the nozzle is arranged for generating a Rayleigh droplet train of the inhalation liquid propagating along a droplet train propagation path, and wherein the intake duct comprises: - at least two first orifices, each of the first orifices having a discharging direction in which respective first air streams discharge from the respective first orifices, characterized in that the first orifices are arranged to provide the first air streams in mutually colliding discharging directions, the discharging directions of the first orifices being directed towards the droplet train propagation path, the at least two first orifices being configured for providing the respective first air streams to flow from the respective orifices along the respective discharging directions to the droplet train propagation path so as to interact with each other in the droplet train propagation path, wherein a droplet size decreases with increasing air flow. - wherein the nozzle is arranged for generating a Rayleigh droplet train of the inhalation liquid propagating along a droplet train propagation path, and wherein the intake duct comprises: - at least two first orifices, each of the first orifices having a discharging direction in which respective first air streams discharge from the respective first orifices, characterized in that the first orifices are arranged to provide the first air streams in mutually colliding discharging directions, the discharging directions of the first orifices being directed towards the droplet train propagation path, the at least two first orifices being configured for providing the respective first air streams to flow from the respective orifices along the respective discharging directions to the droplet train propagation path so as to interact with each other in the droplet train propagation path, wherein a droplet size decreases with increasing air flow.