FILTER UNIT

摘要

PROBLEM TO BE SOLVED: To provide a filter unit which is easily constructed in a position relationship as designed.SOLUTION: A filter unit 4 is attached to a floor surface 2 of an indoor space 18 and forms a path of an air supply system 1 which supplies supplied airflow from an outdoor space 17 to the indoor space 18. The filter unit 4 includes a holding member which connects an outdoor side adapter to an indoor side adapter and maintains a constant distance between the outdoor side adapter and the indoor side adapter to be easily constructed in a position relationship as designed.SELECTED DRAWING: Figure 1