what is a ducted hood
Ductless range hoods are one of three different types of range hoods, along with ducted, or vented, range hoods and convertible range hoods. Vented range hoods require access to outside from the area in the kitchen where the stove is located. Convertible range hoods can be used with either ductless or ducted systems. Versions that are ductless are usually the second choice in range hoods.