air-mixing plenum[′er ‚miks·iŋ ′plēn·əm]
In an air-conditioning system, a chamber in which the recirculating air is mixed with air from outdoors.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
In an air-conditioning system, an enclosed volume in which recirculated air is mixed with fresh air for distribution throughout the system.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.