Functionality and efficiency are key components to running a household and saving money where it counts in your home. Fancy Vents have been tested by a Professional Engineer and meets or exceeds air flow specifications for cold air returns. They are made of steel and cast iron with a powder coated finish for long lasting durability. With the summer temperatures sweltering, an efficient Fancy Vent not only adds custom décor, but also keeps your air flow efficiently working when you need it the most.