Abstract
The purpose of this study is to analyze the photograph of fume hoods (FHs) and to discuss quantitatively the relations between the status and laboratory circumstances. From the photographs of FHs at the time of normal use, we derived the information of type, quantity,and volume of placed materials in FHs. By the kinds of placed materials on the counter top of FHs, the FHs were classified into four categories according to the purpose of FH usage. This analysis suggested that some FHs were used for multiple-purposes and shared by some users, due to a space shortage. By the number of placed materials on the counter top of FHs, the relationship between area and space occupancy indicated that materials tend to be placed on the counter top of FHs side by side as Area Occupancy increases and start to pile due to little space to spread in FHs which may result in obstacle of ventilation.This survey of the actual status of FHs reflects the features of experiment laboratory such as a shortage of operational space and sharing of operational area, and can contribute to provide suggestions for considering rational usage ways of FHs.
