排气柜的结构形式化学试验室排风的目的是及时捕集并排出化学试验过程中放出的有害物;避免整个建筑物内空气被污染,维持良好的工作条件,保护试验人员的健康。化学试验室内通常都有专门供散发有害物的试验用的排气柜,而化验室的通风又是以排气柜排出有害物为主,所以要对排气柜的性能作深入的研究。 Structure of Exhaust Cabinet The purpose of the exhaust of the chemical laboratory is to timely capture and discharge the harmful substances emitted during the chemical test; to avoid air pollution in the entire building, maintain good working conditions, and protect the health of the test personnel. Chemical test chambers are usually equipped with exhaust cabinets designed for the emission of harmful substances. The ventilation of laboratories is mainly based on exhaust cabinets. Therefore, the performance of the exhaust cabinets must be studied in depth.