HICE annually organizes summer schools at partner institutions. Dependent on the expertise of the respective host institution, different key issues (e.g. on-line analytical methods, comprehensive analytical techniques, stable isotope-labelling based analysis, lung tissue models, in-vitro toxicology, in-vitro aerosol exposition at the air liquid interface etc.) are covered. The courses consist of practical work as well as expert lectures and thus contribute to the professional development of the attendants.