The department is equipped with a number of environmental chambers for indoor environment research under controlled conditions. The Stainless Steel Environmental Chamber is designed for investigations of emissions of pollutants from indoor sources under very low background pollutant conditions and other related research. This room-sized chamber encloses a volume of 20 m 3 .
All interior surfaces are clad with stainless steel.
The synthetic materials used in construction of the chamber were selected, in part, for their low emissions of volatile organic compounds. The chamber is equipped with a single-pass ventilation system equipped with filters to remove particles, volatile organic compounds and ozone. Air enters the chamber through a diffuser positioned high at one end of a long wall and exits the chamber through an outlet located low at the opposite end of the same wall. Air is exhausted outdoors. Air velocity in the chamber is also monitored in the chamber during experiments.