目的　评价SCD空气清菌消毒剂对空气消毒效能 ,探讨口腔科诊室空气消毒的新方法。方法　采用动态和静态两种方式对空气的灭菌效果进行监测。结果　SCD在静态情况下消毒 2h ,诊室空气的灭菌率为93.2 %。动态时 ,能维持室内的洁净 ,降低空气中的细菌数。结论　SCD空气清菌消毒剂安全性高、经济实用、杀菌效果明显 Objective To evaluate the effectiveness of SCD air disinfectant on air disinfection and to explore a new method of air disinfection in dental clinic. Methods Two kinds of dynamic and static methods were used to monitor the sterilization effect of air. Results SCD sterilized in static condition for 2h, clinic air sterilization rate was 93.2%. Dynamic, can maintain the indoor clean, reduce the number of bacteria in the air. Conclusion SCD air cleaning disinfectant safe, economical and practical, bactericidal effect is obvious