Indoor microbial aerosols come from various sources and are affected by many environmental factors. Statistical methods could be used to predict the indoor microbial pollution levels in real time. The methods of establishing prediction models were firstly presented. Then, the relationship between indoor microbial aerosol concentration and environmental parameters (air exchange rate, temperature, relative humidity, number of people, particulate matter and air distribution, CO2) was introduced. The prediction model of indoor microbial pollution level was summarized, and the future development direction was provided.
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