Duct backdrafts present an opportunity for uncomfortable outdoor air to re-enter your home after it has left. Fan Dampers are an extremeley effective solution to this issue, allowing air to flow only one direction through the end of the duct: out. Our Fantech Backdraft Dampers are made with high quality spring loaded flaps, giving you peace of mind that no unwelcome backdrafts will enter back into your environment.
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95% DOP and HEPA/ULPA Filters 
