To identify the thermal environments in which the wearing long-sleeved Ventilated Working Jacket (VWJ) when walking is effective, we conducted an experiment using an artificial climate chamber that controlled the air temperature at 28°C and 32°C. During the walking exercise, we measured the physiological and psychological responses of the subjects while they were wearing and not wearing the VWJ. The results showed that wearing the VWJ in temperatures of 28°C and 32°C lowered skin temperature and improved psychological responses. The range of thermal environments in which VWJ wearing was effective, including previous studies, was generally 28〜35°C and 55~64%rh.
