Had a two bedroom apartment with smoke odor. They painted and I cleaned the carpet. I know they had some smoke residue in the duct works and told them that. So I set up the ozone machine on the counter facing the livingroom, placed a small blower behind it to force more airflow, set the air conditioner fan on. Then set the timer on the ozone for 12 hours. Came back the next day and then ran a cold fogger with multiphase deo thru out.
Good enough?
Yeah Mikey wife complains of the car smelling like old man ASS.