How do I select a quieter replacement fan for an elevator cabin?
提问时间：
2026-03-24
回答
Compare airflow at the actual installation resistance, noise data under stated test conditions and the available mounting space. Check vibration isolation, grille restrictions and electrical supply. A lower free-air noise figure alone does not guarantee a quieter cabin once the fan is installed.
回答时间：
2026-03-24
