Air purification system, tunnel with air purification system

摘要

PPROBLEM TO BE SOLVED: To realize an efficient and reliable air clarification without using a ventilation shaft. PSOLUTION: The air clarification system 100 is provided with an air intake path 101 for taking in air of an object to be cleaned from a prescribed space 203, a dust collector 102 for removing floating particulate materials from the air of the object to be cleaned guided through the air intake path 101, a harmful substance removal device 103 for removing harmful substances such as nitrogen compound and carbon monoxide from the primary treated air that is treated in the dust collector 102, and an air return path 104 for returning the cleaned air that is treated in the harmful substance removal device 103 to the prescribed space 203. PCOPYRIGHT: (C)2006,JPO&NCIPI