An onsite testing based on eight-site air sampling was carried out in an airlaid papermaking workshop in Tianjin, China. By theoretical calculation, super absorbent polymer (SAP) size and its existent state in indoor static airflow were obtained. SAP content in the sampled air was test ed through chemical analysis method and found to be 3.0-7.2 times that of the human health limit in production areas. The concentrations of total suspending particles (TSP) and respirable particles were achieved by weighing. Particles of the most concern differ for varied function areas. Particles smaller than 10 μm are mostly produced in the main production process, and 73%-90% particles generated in packing areas are larger than 10 μm. SAP raw material particles can easily changed to suspending form by inevitable extrusion and frication. Correlation between respirable particles andTSP agrees well with that in atmospheric environment.