Try wiping it all down with a strong solution of vinegar and water.
We had a fire in our basement, and the whole house reeked of smoke. The "Fire/Smoke Clean up Crew" came in, and washed all the walls, ceiling, etc., etc., and I mean everything, with a strong solution of vinegar and water! You'd have thought they'd use some exotic chemical, but no, just vinegar and water. Of course the carpets either had to be replaced (where the fire was) or cleaned, and all that. But I swear that vinegar and water took away the smoke smell. They also used charcoal filters and absorbers, so I absolutely agree with using that as well. You may have to do it more than once, and maybe it doesn't work on plastic, I don't know. But they said vinegar is the only thing that will dissolve the tars and resins left by smoke.
Worth a try a least!
Warmest Regards,