Hello, all LG over-the-range microwaves have both options, either venting to the outside or recirculating the air through inside filters. Thank you for your question.
We were hoping to replace a GE Profile with an LG over the range microwave (LMV1813ST). We are hoping that the GE bracket that is currently on the back wall would not have to be replaced. How or where can I find out if the bracket is adaptable to this LG mircrowave?