URG manufactures a wide variety of instruments for indoor and outdoor air sampling. We actively participate in the research and development of instruments for air pollution studies all over the world. Personal Exposure sampling is just one area in which URG has made strides to produce accurate and reliable instruments. One of the most difficult aspects for these studies is correlating ambient concentrations with actual exposure. This creates the need for modular personal sampling monitors that can be used in an everyday setting. Our lightweight and durable portable samplers allow for accurate measurements in an environment where larger samplers would not be practical. Our personal samplers feature size-selective impactor inlets - allowing for selective measurement of respirable particles. Our monitors are available with 1.0, 2.5 and 10μm inlets.