Ioannis’ Sakellaris expertise covers comfort/health perception and experimental study of indoor/outdoor air pollution and ventilation conditions. He is familiar conducting questionnaire surveys and currently he is working on processing and analyzing questionnaire and measurements’ large database using statistical tools such as IBM SPSS, STATA, MATLAB, PYTHON. His study covers weather/air quality simulation tools and models (WRF/WRFCHEM, CAMx) and managing high-resolution emission inventories.