To enhance installation characteristics of a clean room, simplify work at the time of changing layout, enhance transportation characteristics of an air-cleaning device, and reduce material cost for ceiling grids and installation cost by employing a simple ceiling grid frame and the air-cleaning device.
A packing 3 made of a soft material capable of avoiding air leakage by making a gap as small as possible by self-weight of the air-cleaning device is used between a top face of the ceiling grid frame 11 and a bottom face of the air-cleaning device 2. A hook for transportation is provided on a side face of a main body, and the air-cleaning device can be transported by hooking a tip end of a handle. An air-cleaning system has the longitudinal direction of the ceiling grid frame aligned with the longitudinal direction of each area for the respective areas of the clean room.
HONMA KEIICHI
TAKEUCHI SHUICHI
KONISHI SHUNICHI
HITACHI IND CO LTD
HITACHI PLANT ENG & CONSTR CO
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