The impact of the pollution caused by human bioeffluents on the occupants' perceived air quality was studied in two different thermal conditions, i.e., warm condition (28°C), and neutral condition (25°C) air-conditioned by heat pump. Fifty subjects occupied a room for 75 minutes in the above conditions. The concentrations of VOCs were also measured for identifying possible VOCs emitted from human bioeffluents. VOCs presented in the room air of warm condition showed the presence of various types of compounds including organic fatty acids, alkane, aromatic compounds, and aldehydes. Besides above VOCs, which might be emitted from human bioeffluents, were not derected in the air-conditioned air and background. The occupants evaluated thermal condition, air freshness, feeling of sleepiness, easiness to concentrate though questionnaire. Occupants in the condition of 28°C felt malodor such as body odor and felt discomfort to IAQ.
