||Recently, Indoor Air Quality is a matter of concern and demands by residents. Who pursuit both physical and mental health like 'well-being'. When build the new construction it use paint, building material, glude and more. They emit harmful chemicals. And IAQ go from bad to worse because of the hight airtightness and insulation of the building for energy-saving. Especially, a outbreak of Sick House Syndrome(SHS) increases by harmful chemicals, like Volatile Organic Compounds(VOCs) and Formaldehyde(HCHO), from the interior materials of a house. SHS cause health problem like a headache, vomiting, varieties of allergy and atopic dermatitis. Lately, modern people spend more than 80% of their time at indoor space. Particularly, university students spend many time in the school. Above all, student stay long in dormitory for sleep. Therefore dormitory’s IAQ is most important. So this study measured the level of the indoor contamination according to the year of completion and show a measure for a comfortable indoor air quality.