My oven turns on only slightly below the 200F setting, not sure what temp it actually is (guessing 175 or so), but I use that on wood after spraying it down for an hour when I need to disinfect wood.
If it smells even after extensive airing out, definitely toss it. I had some cork bark we accidentally left in the oven when we preheated for 10 or 15 minutes to a cooking temperature, but the smokey smell aired out in a week or so just left on the couner. Once it smelled normal up close, we went ahead and used it; slightly darker appearance was the only evidence of that mistake.
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