5. In terms of the use of climatic control to modify the indoor environment, it was found that air-conditioner and opening the windows were widely used in naturally ventilated offices. In mechanically ventilated offices, however, turning off the air- conditioner, changing clothes and opening the windows and doors were frequently done when it was cold. The studies also revealed the tendency of the occupants to modify the hot and humid living environment by creating a higher air movement (opening the windows-doors and switching on the air conditioner).