Air Handling System 2 : All of the fans, ducts, controls, dampers, filters, intakes, heating and cooling apparatus that remove, clean and recirculate the air in a structure
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}