| 摘要 |
PROBLEM TO BE SOLVED: To provide an air filter unit allowing an improvement in filter performance and easy assembling work. SOLUTION: Multiple filter cassettes are arranged combined in a V-shape within filter frames 16 and 22. A through-hole 16b is formed in the vertical direction to the adjacent direction of the filter cassettes, at least on one of the pair of frame members 16 oppositely arranged in the direction orthogonal to the adjacent direction of the filter cassettes. The filter cassettes are inserted into the filter frames 16, 22 through the through-hole 16b. COPYRIGHT: (C)2005,JPO&NCIPI
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