Provide your new under-cabinet range hood with an alternative ventilation option with the Windster 42W in. WS-38 Series Ductless Kit. This kit lets you use your Windster brand range hood (the WS-38 42-inch wide models only). The unit is made from sturdy, solid stainless steel with a seamless design and smooth edges. The air is circulated through a second charcoal filter to completely cleanse it of smoke particulates, grease vapors, odors, and more. This ductless kit has been approved for use by the CSA for use in both US and Canadian homes.