| 요약2 |
High-density region is formed, we are a large capacity of building equipment. And the parking lot that has been built in recent years, most of the apartment or building, to the underground space in the parking lot. And a tendency for parking buildings is increasing. However, effective use of the utility of a space to be used underground parking lot or parking building is high. However, because of the characteristics of the enclosed space, air pollution has become a problem in a serious problem with the exhaust gas of an automobile. For large space, in order to maintain the quality of air in the allowable concentration following multiple ventilation system has been introduced. Space has been the introduction of various ventilation system for maintaining the air quality below the concentration allowed. Jet fan ventilation system is easy to install, due to the trend of the installation cost savings and efficiency Applications are on the rise. |