KOACH is equipped with a nanofiber air filter and airflow control mechanism that generates coherent air flows, opposing air flows and rectangular confluence air flows.
Through the combination of these original technologies, a super clean zone with ISO Class 1 cleanliness is materialized in an open space.
A clean zone is created by making coherent air flows generated from two opposing push hoods collide with each other.
Push hoods of KOACH, an open cleanroom system, generate purified coherent air flows filtered by FERENA, high-performance filter.
Despite their special properties, such coherent air flows, however, induce the surrounding air as they travel away from the air-blowing surfaces of the push hoods if an area is not surrounded by walls. Thus, the clean zone area gradually becomes smaller. (Fig.1)
This problem was resolved by making purified coherent air flows generated by the two opposing push hoods collide with each other (opposing air flows). In other words, because horizontally opposing air flows effectively suppresses induction of the surrounding air, almost no decrease in the level of air cleanliness within the clean zone is seen even at a point far away from the air-blowing surfaces of the push hoods. (Fig. 2)