Eliminating smoke odours is actually quite an interesting problem.  Anytime an area has been permeated by smoke whether its by cigarettes or by fire there is only a couple of ways to eradicate the smell permanently.

Do Not waste time with fancy candles, air fresheners or ventilation (opening doors and windows) these methods may stop the bleeding momentarily but are ineffective in the long run. When smoke saturates a room tiny smoke particles adhere to walls, furniture and floors.

1. All furniture must be removed and thoroughly cleaned with a specified smoke-odour removing product.
2. The walls and the floors receive the same treatment.  The source of the problem must be removed.
3. Another way to eliminate smoke odours is to run an ozone generator in the affected area but this can be expensive and will involve vacating the area for a period of time.