Dr. Simo Kilpeläinen is a laboratory manager at the Department of Mechanical Engineering, Aalto University. He got his D. Sc. (Tech.) degree from Aalto in 2011 and M. Sc. (Tech.) degree from Helsinki University of Technology in 2006. He worked previously (2005-2011) as a researcher and PhD student at the Department of Physics in HUT/Aalto. His current research interests are air distribution, IAQ, thermal comfort and building energy systems. Previously he studied vacancy-type defects in semiconductor materials with positron annihilation spectroscopy.