Objective:The aim of this study is to evaluate the protection effect of Hope I decoction on ozone inhalation-induced injury in rats and provide experimental basis for research of hope I decoction.Methods:48 male SD rats were randomly divided into 6 groups, i.e., control, model, VE (0.0135g/kg), Hope I decoction at three dosages (0.045,0.090,0.180g/kg respectively). Rats in the latter 5 groups were exposed to ozone in an exposure cabinet (1.2±0.2 parts per million (PPM) 10h/d ×45d), and were intragastrically...