Featherweight smell
I removed the smell of rotten meat from a refrigerator that was turned off, of an apartment we moved into with fish tank charcoal. It is the only thing that worked, and I tried every thing from every one. [most are trashed becouse of the smell.]
If you want to kill the spores from the horse glue that was applied to the inside to hold the lining in place try this. Take the lining out, wash the inside with peroxide [it kills the germs in the back of the ambulance after a run, and it is cheap] let it dry in the sun. Then glue it back in. I would replace the lining also. Then make a small sack like an old tobacco bag fill with charcoal and leave it inside. If you live in a humid area, make another bag with rice in it. The rice will adsorb the moister. Both bags need to be able to “breath” to work, make out of a loose weave cotton fabric. You can also replace the oil pad with craft felt.