我院共有手术室10间，自1996年10月起改化学制剂甲醛熏蒸为传统芳香辟秽中药苍术烟熏进行空气消毒。自1996年10月～1997年1月，应用苍术烟熏消毒手术间160间次，其中每次消毒时间2h者80间次，4h者80间次，与1996年1月-9月间应用甲醛烟熏消毒手术间380间次（每次4～6h）作观察比 There are 10 operating theatres in our hospital. Since October 1996, the formaldehyde fumigation of chemical preparations has been sterilized by traditional aromatic herbs and herbs. From October 1996 to January 1997, 160 procedures were used to disinfect the operation room among the herbs in the Atractylodes lanceolata. Among them, 80 were used for 2h each time, 80 times for 4h, and formaldehyde was applied between January and September 1996. 380 times (4-6 hours each time) in the smoke-disinfecting operation room for observation