配制药物时需抽吸空气注入药瓶内，但抽吸治疗室内空气稀释药物有细菌生长，【则因此，抽吸配制药物的空气应经过滤净化。为了解决抽吸净化空气的问题，我科自制了空气过滤器，于1996年9月应用于临床，机吸配制药物空气356例，细菌学检验可滤除细菌79．6％～92．3％。观介绍如 Preparation of drugs to be drawn into the vial of air suction, but the suction treatment of indoor air dilution drugs have bacterial growth, therefore, the suction of the air preparation of drugs should be filtered and purified. In order to solve the problem of pumping purified air, our department made a self-made air filter. In September 1996, it was used in clinical and mechanical suction to prepare 356 air samples. Bacteriological examination could filter bacteria by 79.6% -92.3% . Introduction