No worries mate, you've helped me a fair bit over the years. (brakes is one I remember )
Did a bit of research when I saw the issue you posted.
This Ozone Machine seriously seems the best method. Actually kills/removes the ION's, microbes, fungi that creates the Odours.
Cleaning masks the issue but does not rid the micro bacterial cause.
I'll definitely be using this as a Just-in-Case measure.