Abstract
This study examined influential factors towards occupants' window opening/air conditioner using behavior in the different situations in daily life through internet questionnaires surveys which were carried out in Kansai region in the summer of 2013 during 3 separate periods: mid-summer, late-summer and autumn. Object families filled out questionnaires about behavior towards opening windows/using air conditioners in a living room and master bedroom in 6 situations in daily life. Also, they answered questionnaires about family characteristics, house building features, dwelling environment and regional situations. The results suggested that the factors and its influence towards occupants' behavior could differ from situations in daily life.
