The aim of the specific paper is to present the methodology followed for the development of a training package in the field of indoor environmental quality. The need for education in this specific sector is dictated by the significant indoor environment problem and associated health hazards as these become evident through a series of studies and measurements. A training methodology is developed and the overall training material is structured in thirteen modules covering all the parameters associated with the indoor environment quality, for trainees of various disciplines. The training modules were evaluated through questionnaires distributed in the framework of indoor environmental quality seminarsJRC.I.2-Chemical assessment and testin