Flushing Meadows Natatorium Olympics, but when NYC's bid was lost to London, the New York City Department of Parks and Recreation proceeded to build the pool anyway. The result is an innovative building with 130-foot-high twin masts and a swooping roof form. The masts are an architectural feature extending up into the Queens skyline as well as the structural supports for the cable-stayed roof. This design provides the clear spans necessary to house an Olympic swimming pool along with an ice skating rink. The Flushing Meadows Natatorium was designed by Handel Architects in association with Kevin Hom Architects (formerly Kevin Hom +Andrew Goldman
Indoor air quality ventilation. Instead of setting throughput at a fixed air replacement rate, carbon dioxide sensors are used to control the rate dynamically, based on the emissions of actual building occupants. For the past several years, there have been many debates among indoor air quality specialists about the proper definition of indoor air quality and specifically what constitutes "acceptable" indoor air quality. One way of quantitatively ensuring the health of indoor air is by the frequency of effective turnover of interior air by replacement with outside air. In the UK, for example, classrooms are required to have 2.5 outdoor air changes per