As the name implies, a ductless bathroom exhaust fan is a model that doesn’t need a duct to function. Air is filtered to eliminate moisture, smells, and contaminants, then recycled into the room.
Installing a conventional bathroom exhaust fan may not always be viable, which is why ductless bathroom exhaust fans have become increasingly popular in recent years.
Installing a duct for an exhaust fan, for instance, may be challenging or even impossible in some older residences or in structures with concrete.