he Outdoor Room project for the 5th China International Architecture Biennial created an urban public space that reactivated Beijing’s iconic Olympic Park while focusing on air quality issues in Beijing. The competition-winning project opened in Beijing and will travel to six cities in China. Outdoor Room served as both an engaging urban public space and a barometer of Beijing’s well-documented air quality levels. Along with the weather report, daily readings of air particulate contaminant have become part of everyday urban life in Beijing. On most days, pollution creates a dense fog that transforms the city with an unsettling palette of colors—from dull grey to off-white and yellow-beige.