| 요약2 |
The indoor air has been polluted seriously in a residential room, wherever the air tightness is improved only for preventing infiltration with energy conservation strategies in buildings. Originally oxygen is most important element to vitalizing human body. In a small room, occupants inhale the oxygen and exhale the carbon dioxide to the ambient air. However, ventilation or oxygen generator could be applied to compensate oxygen consuming with respiration in a room. In this study, the variation of concentration for oxygen and carbon dioxide with human breaths has been measured in a typical bed room when occupied with 2 persons during 12 hours of measurement periods. And the effects of compensation of oxygen with operating oxygen generator in a selected room. The CO2 concentration has been increased dramatically in a air tight room and the oxygen concentration is decreased with residence activities. |