Particulate air pollution is separated into three classifications; coarse, fine and ultrafine particles. Coarse particles have a diameter of between 10µm and 2.5µm and settle relatively quickly whereas fine (0.1 to 2.5µm in diameter) and ultrafine (< 0.1µm in diameter) particles remain in suspension for longer. Our Fine Particulate Sampler AI-102 is precisely designed ambient air sampler for fine dust sampling.