LOCAL AIR PURIFICATION DEVICE

摘要

A local air purification device (1) is equipped with: a push hood (2) having an airflow opening surface (23) which discharges a purified uniform flow of air; and a guide (3), which is provided on the airflow opening surface (23) side of the push hood (2), and which extends from the airflow opening surface (23) side toward the downstream side of the uniform flow of air and forms an opening surface (31) at the downstream end. The push hood (2) is arranged such that the uniform flow of air discharged from the airflow opening surface (23) passes through the interior of the guide (3) and then collides with an air collision surface (W) downstream from the opening surface (31). With the guide (3) an open region is formed between the opening surface (31) and the air collision surface (W) by arranging the opening surface (31) at a distance from and facing the air collision surface (W). The purified uniform flow of air discharged from the airflow opening surface (23) collides with the air collision surface (W) and flows to the outside of the open region, and thus the interior of the guide (3) and the interior of the open region have higher purity than other regions.