These platforms are also typically installed in clean room environments where space is at a premium. (fillers.com)
I have been working in clean room environments associated with research and development as well as integration, testing, and launch of complex, one of a kind laser systems and satellites. (members.climber.com)
It was practically like an engineering firm's clean room environment where dust particles ceased to exist (Diana's house on the other hand coexisted with dust and mites). (babygaga.com)