In this study, we used an irradiation system to investigate differences in the following: (1) impressionistic assessment of room environment; (2) effects on physical and psychological restorativeness; and (3) job satisfaction due to brief rests in a nursing home room with or without Komore-bi. Results showed that impressionistic assessment (SD/PRS) for each room environment was more positive with Komore-bi. Additionally, salivary amylase activity, a physical indicator, was significantly reduced; while the subjective feeling of restorativeness (ROS) and mood states (POMS), both psychological indicators, significantly improved in the room with Komore-bi. Furthermore, some statistical differences in job satisfaction were found in the presence or absence of Komore-bi. In other words, this experiment has shown that short exposure to the Komore-bi irradiation system might contribute to the physical and psychological recovery and increased job satisfaction among staff members.
