Abstract：The research of bioaerosol relies on a stable and reliable atomization process. The performances of different aerosol generators are evaluated from the aspects of particle concentration, particle size distribution, bacterial culturability and cell membrane damage, and the influence of inlet flow is discussed.The results show that the mechanical stress in the process of aerosol generation seriously damages the integrity of the cell membrane, which reduces the cultivable rate of bacteria by more than 90%, and with the increase of air flow, the proportion of cell debris increases, and the cell membrane damage becomes more serious. Since the research of bioaerosol not only requires high concentrations of microorganisms, but also ensures the integrity and cultivability of cells, the above study will provide a basis for the performance evaluation and selection of bioaerosol generators.
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2022, Vol. 43 
