ASHRAE赞助的研究项目的工作声明指出，该项目的目标是制定在ASHRAE手册和产品目录coveringA中发布的暂定标准。房间空气分配的设计、空气扩散器（供应装置）的类型、房间内通风罩的布置和数量；B.研究实验室通风柜的设计、选择、尺寸、测试和维护有两种代表性类型:1）标准实验室通风柜；2） 带有内部和/或外部辅助气源的标准罩；andC。一套标准罩程序，用于测试实验室罩的性能。为了实现工作说明的目标，开发了标准性能测试，用于两组实验室测试，并在16个学术或工业实验室通风柜上进行了现场测试。 该项目的结果表明:1）拟议的标准性能测试是一种可行的工具，与当前的表面速度测试相比，可以对通风柜进行更有意义的评估。2） 更换空气供应方法的影响（供应装置的类型、数量、尺寸和位置）与发动机罩表面速度同等重要（如果不是更重要的话）。3） 为选择和放置送风固定装置制定了一套设计建议和指南。

The work statement for the ASHRAE sponsored research project states that the object of the project is to develop tentative criteria for publication in the ASHRAE Handbook and Product Directory coveringA. The design of room air distribution, type of air diffusers (supply fixtures), and the arrangement and number of hoods in a room;B. The design, selection, sizing, testing and maintenance of fume hoods for research laboratories of two representative types: 1) Standard laboratory hoods; 2) Standard hoods with internal and/or external auxiliary air supply; andC. A set of standard hood procedures for testing the performance of laboratory hoods in place.To pursue the objectives of the work statement, a standard performance test was developed, used in two sets of laboratory tests and tested in the field on sixteen academic or industrial laboratory fume hoods. The results of the project indicate that:1) The proposed standard performance test is a viable tool that yields a considerably more meaningful evaluation of fume hoods than the current face velocity tests. 2) The effect of the method of supplying the replacement air (type, number, size and location of supply fixtures) is as important, if not more important, than the hood face velocity. 3) A set of design recommendations and guidelines for the selection and placement of supply air fixtures was developed.