Need to clean the ac evaporator to get rid of the contamination stuck to it along with same in the vent tubes. Have used this on a car that was used by a cigar smoker . Key is doing it twice to let it dissolve the trapped stuck on nicotine. If you don't clean the evaporator the smell will not go away. Make sure to remove the cabin air filter before using the FrigiClean and let the foam come up and out the vents.
After FrigiClean use the FrigiFresh through the fresh air intake. Have also used Lysol fresh air spray (linen scent) in same manner through fresh air intake occasionally.
Clean interior with
https://www.amazon.com/gp/aw/d/B0002...b_b_asin_title
Ozone machines do very little to remove the odors long term. They also cause degeneration of rubber in the interiors.
https://www.amazon.com/Frigi-Clean-E.../dp/B09WM4YXKH
https://www.bgprod.com/catalog/clima...g-frigi-clean/