RESUMEN
Objective@#To investigate the current situation of the installation and use of air purification equipment in primary schools in Beijing in order to provide data for school-based air pollution prevention and intervention.@*Methods@#A questionnaire survey was conducted in 50 primary schools in 6 districts in Beijing. Spearman correlation coefficient and Pearson correlation coefficient were used to test the correlation between installation rate of air purification equipment and per capita disposable income.@*Results@#The overall installation rate of air purifier or fresh air system in primary schools in Beijing was 62.0%, the overall installation rate of air purifier was 50.0% and the overall installation rate of fresh air system was 18.0%. Installation rate of fresh air system or air purifier was highly correlated with per capita disposable income (r=0.92, P=0.01).@*Conclusion@#The installation rate of air purification equipment in primary schools is relatively high, but parameters and purification types are not unified, and there is a lack of scientific guideline. Therefore, the installation and use of air purification equipment in schools should be further standardized and unified to protect the health of children and adolescents.