Purpose - It is rather easy to control thermal air conditions in narrow-air tight living spaces. However, it is not so easy to keep good air quality in the spaces. Indoor air condition is especially important to keep the health condition of the people. We researched the environmental condition of the temporary houses.

Methodology - We carried out a survey regarding housing conditions, families and so on, measuring indoor air conditions, room air temperature, humidity in summer and winter, and carbon dioxide (CO2) in winter.

Results - in August, average air temperatures were near 28℃ in living rooms and in bed room. Humidity was near 70% in both rooms. Discomfort index was about 78 in both rooms. In January, average air temperature was 14.3℃. Humidity was near 60% and Wind-chill index was about 320kcal/m2/hr. Mean of average CO2 concentration was 1240ppm. Max CO2 concentration was 2182ppm. Key Findings - the thermal condition in indoor housing is hot and humid: not so comfortable in summer. Wind-chill index 300 ~500kcal/m2/hr. is cool and wind-chill index 150 ~300 kcal/m2/hr. is comfortable according to the evaluation of thermal conditions. Inside the housing is not so uncomfortable for the activities and daily life of people. CO2 levels became to be high. Poor air quality occurs frequently inside air tight and narrow spaces. Therefore, adequate ventilation in rooms is needed to keep good air quality. Originality - in practice, carbon dioxide (CO2) is an easy index of air quality in living spaces. Discomfort index (DI) in hot and humid environments and, wind-chill index (WCI) in cold environments are better indices.