A state in which the environs of hospitals, laboratories, domestic and animal housing, work places, spacecraft, and other surroundings are under technological control with regard to air conditioning, heating, lighting, humidity, ventilation, and other ambient features. The concept includes control of atmospheric composition. (From Jane's Aerospace Dictionary, 3d ed)

Synonyms: Area, Laminar Air-Flow, Laminar Air-Flow Area, Controlled Environment, Laminar Air-Flow Areas, Clean Rooms, Clean Room, Controlled Environments, Environments, Controlled, Laminar Air Flow Areas, Environment, Controlled, Room, Clean