Prediction of the concentration and size distribution of indoor suspended particulate matter

Taking the small offices & residences for an object of study, this paper analyzes the process and major factors to affect the concentration and size distribution of indoor suspended particulate matter, founds the mass balance model to predict the concentration and sizer distribution of indoor SPM. According to the real-time measuring data, the feature of building defence structure and the concentration and size distribution of outdoor SPM, the deposition model, the penetration model and indoor air capacity are used as input parameter of the mass balance model.We have put to the proof of the deposition model, the penetration model, simulated the mass balance model, then predicted the concentration and size distribution of indoor SPM.