The FAMCO Butterfly Damper (BD) is used as a backdraft damper for heat exchangers, exhaust systems, solar heating systems and other intake or exhaust applications where a powered damper is not needed. This damper works in both horizontal or vertical positions and the foam seal provides minimal air leakage. Due to its unique design it opens easily with normal airflow and closes with gravity. FAMCO’s backdraft dampers are quality constructed in galvanized steel metal, built to last, and come at a relatively affordable price. Without a quality backdraft damper, the overall circulation of air in your home will suffer. Why is a backdraft damper important? There are a few reasons why this one piece is especially critical. A backdraft damper, while small, plays an important role in supporting the overall function of your entire ventilation system. Without it, your air quality will suffer, and odors caused by bacteria are more likely to persist, especially in hot and humid rooms. Simply put, a backdraft damper allows for contaminated air to be transferred out of the room and prevents reverse airflow. Invest in high-quality HVAC Backdraft dampers We do not recommend cutting costs on important pieces like the backdraft damper that will ultimate impact the kind of air you and your family breathe in on a daily basis. It’s normal for germs, bacteria, and dust to enter your home but when these pollutants are not properly carried out, your health may ultimately be on the line overtime. If you already suffer from allergies or asthma, improper ventilation will only make these conditions worse. Investing in top quality backdraft dampers for your home is a wise investment in the long run. We carry a variety of backdraft dampers A backdraft damper is typically used on heat exchangers, exhaust systems, solar heating systems and can be installed either horizontally or vertically. You will find a variety of backdraft dampers among FAMCO’s inventory including aluminum wall vent-reversible backdraft dampers, butterfly backdraft dampers, and galvanized wall vent – reversible backdraft dampers. As one of the largest retailers in the Pacific Northwest, we can help you find exactly what you need for your home or office and can answer questions you may have regarding how a backdraft damper functions.