Attendance Record for Las Vegas 2011 AHR Expo

A new record for attendance was achieved at the Las Vegas 2011 AHR Expo with over 34,000 attendees, 20,000 exhibiting personnel, and 1938 exhibiting companies.

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[source: http://www.buildings.com/article-details/articleid/11447/title/attendance-record-for-las-vegas-2011-ahr-expo.aspx]