The answer to that question will greatly depend on your particular situation. Ideally, you’ll want to get an over-the-range microwave that covers the entirety of your cooktop both in width and length to ensure that the appliance catches all the smoke released while you cook. Now as great as over-the-range microwaves work, they’ll never be as good as an actual range hood, so if you want the best smoke control solution, these microwaves might not be it.