This research seeks to find the optimal temperature where the occupant’s comfortability and productivity according to brain wave type can be improved. In this study, EEG was compared and analyzed in the environmental test room by classifying subjects into two types: A and B. The condition of the environmental test room was in relative humidity 50 [RH%], air current speed 0.02[m/s] and illuminance 1000[lux] with setting up different temperatures from 19[◦C] to 30[◦C] at intervals of 3[◦C]. At 25[◦C] for A type and 22[◦C] for B type, relative Mα wave, relative Mβ wave and SEF50 were revitalized. wave asymmetry index, stress index and fatigue degree of both types at the 25[◦C] and 22[◦C] were decreased. It was found that A type was more sensitive than B type about temperature, and also they have different preferences for productivity and concentration about temperature.

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