A backdraft damper allows the stream in a single route and will not change the direction or decrease the circulation. Meanwhile, the balancing damper uses rotating shutters to control airflow and pace. Go away a Reply It prevents backdrafts, which can manifest when destructive force builds up in your home. https://air-control-dampers-for-e78900.blogitright.com/36675676/helping-the-others-realize-the-advantages-of-air-control-dampers-for-hot-climates