we bought a house with a smoking room - this air purifier runs there and the room really no longer smells of smoke - however, the purifier has to run regularly for this. if we switch it off for a week, the smell is back.

clean the air in your flat or room. free it from odours and dust. the smell of smoke will be in the room itself. maybe repaint the floor etc.!

Old cigarette smoke does not. Overall, it is a good unit. For cigarette smoke, possibly check an ozone device.