| 摘要 |
PROBLEM TO BE SOLVED: To provide a supply grill in which antidewing effect is prevented from lowering through aging. SOLUTION: The supply grill comprises a tubular section 4a disposed in the ceiling or wall while being coupled with a chamber 3 which is coupled with a duct 2 from the outdoor side and having a rectangular opening for interconnecting the chamber 3 and a room and ventilating the room, a flange section 4b formed to project outward at the indoor side end part, and a part 5 projecting inward from the longitudinal plane in the vicinity of the indoor side end part in the rectangular opening. According to the structure, antidewing effect can be prevented from lowering through aging.
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