what is a ductless hood range
How to Choose Ductless Range Hoods. A ductless range hood, also called a recirculating range hood, is one that does not exhaust air outdoors through a duct. Instead, this type of hood draws air through a filter before circulating it back into the room.ow to Choose Ductless Range Hoods. A ductless range hood, also called a recirculating range hood, is one that does not exhaust air outdoors through a duct. Instead, this type of hood draws air through a filter before circulating it back into the room.