The design of a fire damper can influence how it integrates into an HVAC fire protection system. When comparing manufacturers of fire dampers, professionals can examine factors such as frame construction, blade configuration, springs, and fusible link arrangements. Airmaster Emirates’ AFD 3 model uses a 1.6 mm galvanized steel frame and 1 mm galvanized steel interlocking blades. The blade ramp is also formed from galvanized steel and incorporates a spring holder. Two constant-force stainless steel springs support the operating mechanism, while UL-listed fusible links provide the heat-responsive release function. The product is intended for installation within fire-rated walls, barriers, and partitions where HVAC ductwork penetrates these structures. Its product information also references UL 555 compliance and NFPA 90A installation recommendations. This makes the product worth reviewing for engineers and HVAC professionals evaluating fire damper designs for building projects.