Golden Vantage 4 in. Range Hood Carbon Filter Replacement Recirculating Kit

These carbon filters are designed for ventless / ductless range hood installation. They are attached to the range hood blower to clean up the air before recirculating back into the house. No more duct work is necessary. This is a perfect solution for kitchens that don't have an exhausting duct. No need to make a duct on the wall or the ceiling.