该研究项目比RP 86的实地调查工作更全面。其目的是测量各种空调系统在清除被占用办公区污染物方面的有效性，该办公区的占用受到完全控制。就气体污染物而言，这些污染物的水平受到了控制，因此有可能在足够长的时间内建立显著的“室外”水平，以便对去除设备进行有意义的测试。这项工作的目标是确定当进入的气流中存在已知污染物时，哪些设备应该或可以用于封闭空间。

This research program was somewhat more comprehensive than the field survey work of RP 86. It was designed to measure the effectiveness of various air conditioning systems in removing pollutants from an occupied office area, occupancy of which was under full control. In the case of gaseous pollutants, the levels of these were controlled, thereby making it possible to establish significant "outdoor" levels for periods long enough to make meaningful testing of the removal equipment.The goal of the work was to determine what equipment is available that should or could be used in enclosed spaces when known pollutants are in the incoming air stream.