You might find your ideal placement for your new range hood conflicts with an available ventilation duct. The Windster RA-60TB Series Ductless Kit allows you to bypass a duct connection and purify the air for exhaust through a second set of filters. The kit is made from sturdy, solid stainless steel and is expertly welded for a seamless design with smooth edges. A pair of charcoal filters are included to make sure the output is free of smoke particulates, odors, grease vapors, and other airborne irritants. This ductless kit has been approved for use by the CSA for use in both US and Canadian homes.