![](https://www.epfl.ch/labs/leso/wp-content/uploads/2019/02/research_facadeleso-e1554887000902-384x216.jpg)
LESO experimental building
In its early years used to test different façade types, the LESO building now allows testing of daylighting and façade control systems.
![nano lab](https://www.epfl.ch/labs/leso/wp-content/uploads/2019/05/resource_nano_plasmavacuumdep1920-384x216.jpg)
Nanotech lab
Infrastructure for cutting-edge research in the fields of Nanotechnology for Solar Energy Conversion and Smart Materials for the Building Envelope
![NEST SolAce unit](https://www.epfl.ch/labs/leso/wp-content/uploads/2019/05/IMG_3562_web19_1920x1080-384x216.jpg)
NEST SolAce pilot unit
Solace Unit of the NEST demonstration building, created to explore means of increasing the energy production of buildings while ensuring user comfort
![MoTus measuring mast](https://www.epfl.ch/labs/leso/wp-content/uploads/2019/05/das_matbig1920-384x216.jpg)
MoTUS – Urban climate measuring equipment
A 27 m mast for the monitoring of urban climate parameters
![demona test bed units](https://www.epfl.ch/labs/leso/wp-content/uploads/2019/05/resources_demona1920-384x216.jpg)
Demona
Testbed for field measurements in the context of daylighting research. Dimensions of typical office space.
![diffuse sunlight simulator](https://www.epfl.ch/labs/leso/wp-content/uploads/2019/05/cielart1920-384x216.jpg)
Daylighting lab
A direct sunlight simulator (Heliodon) as well as a scanning sky (diffuse light) simulator as well as a photogoniometer for the study of directional light transmission and reflection properties of fenestration systems allow testing of scale models and samples.
![](https://www.epfl.ch/labs/leso/wp-content/uploads/2018/05/research_equip_photobio.gif)
Phobio
A photobiological laboratory was set up for studies and research on the effects of light on physiology and behavior in humans.