Determine the quantity of particulate matter in each cubic meter of air with this sampler, which draws air through a high-efficiency filter, collecting the particulates. The total mass of the collected particles can then be determined, and the material collected can also be subjected to various tests. Ruggedly constructed and designed for indoor/outdoor use, this unit operates on 110V AC. Includes: detachable manometer, 25 filter disks, and operating Instructions.