Features the ASHRAE award-winning Trans World Dome, a 159,000m² (1.71 million ft²) home to the St. Louis football team, serving 70,000 spectators, and up to 80,000 during concerts. It also houses trade shows and conventions. Focuses on the HVAC provision. Provides a typical building section illustrating the air distribution scheme. Discusses considerations of energy efficiency and indoor air quality, including CO₂ sensors, roof-mounted exhaust fans for general building relief and special event exhaust. Provides a 24-hour profile of actual CO₂ measurements for an evening football game. Notes a formal preventive maintenance programme developed for all mechanical and electrical systems. Illustrates the first year's electricity and steam consumption.