Patent ID: 8169330

Claim:
A system for sampling air at multiple locations in a controlled environment comprising: a first controller configured to be in separate air flow communication with two or more air sampling devices via separate first vacuum tubes, the first controller having a manifold configured to separately control an actual rate of air flow from the two or more air sampling devices to the first controller via each of the separate first vacuum tubes and to selectively direct the air flow from each of the separate first vacuum tubes to one or more second vacuum tubes; a vacuum source in air flow communication with the first controller via the one or more second vacuum tubes, the vacuum source providing suction and being controlled by the first controller to generate the air flow through each of the first vacuum tubes; and a flow switch for each of the two or more air sampling devices that is in flow communication with a corresponding air sampling device and the vacuum source, each of the flow switches being configured to separately measure and control the actual rate of air flow through a corresponding first vacuum tube.