Pueblo Sandia has been recognized by the U.S. Environmental Protection Agency and Harvard University for excellence in environmental standards, according its designer, Leo A. Daly. Indoor air quality and smoke reduction are growing concerns among casino patrons, and gaming operators and Building Teams are paying attention. Native American casinos such as Pueblo Sandia (as well as some Las Vegas casinos), are turning to 100% fresh outside air mechanical systems sthat supply air at floor level closer to the occupants of the building to improve air quality in public areas.