The present invention is directed to improvements related to the generation of aerosols and outlines an apparatus and methods which supports deagglomeration and counteracts reagglomeration of aerosol particles. The apparatus is provided with an arrangement of inlet conduits for pressurized gas that promote transportation with a rotational flow towards an exit conduit. In order to further support production of high quality aerosols, the apparatus can be provided with an impactor aligned with the exit conduit with at least one impacting surface that minimizes formation of impact residues.
