A:Answer In the rear of the cooktop for the LG 6.3 cu. ft. 30 in. Slide-In Electric Smart Range with ProBake Convection, Induction, Self Clean Oven in Stainless Steel, Model # LSE4617ST is the vent trim that has vents through which the range vents into the room. It does not have the built-in feature of a fan blower like those found in range hoods or over-the-range microwave ovens. If you have a well ventilated large kitchen, a hood or microwave to vent may not be a necessity. Using a hood or a microwave mounted above it to vent is preferential. If you have an over-the-range microwave that can be Wall-Vented or Roof-vented or a hood helps to remove gasses, odors, airborne grease, smoke, heat, and steam from the cooktop surface that would make for a more comfortable cooking environment. If you are in need of any assistance, have additional questions, or would just like to see our helpful tips, check us out on Twitter @LGUSSupport Facebook https://www.facebook.com/LGUSA/ or you can give us a call at 800-243-0000. ^CP
