| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter frame for achieving the suppress of a production cost and the improvement of the design flexibility of a filter to be set up.SOLUTION: A filter frame, that retains a filter for removing dust in a fluid and is set up in a ventilator, consists of a flat member bent and sterically assembled to be a box to store the filter, the flat member having open sections formed therein to expose the upstream side surface and the downstream side surface of the filter in an assembled state. |
