I recently moved into a new apartment, during the visits everything was airy so I couldn't detect this problem, but after moving in, I quickly realized that the old tenants were smoking inside, especially in the bedroom.
Since I'm not a smoker, the cold cigarette smell that haunts the walls of my current bedroom disgusts me, and I can't get rid of it.
I tried to open the window for more than a week every day for more than 15 hours a day, I live in an area with a lot of wind but every night when I close the window, a few minutes are enough to bring back this disgusting smell.
Note: I'm also afraid that my matela and the clothes in this room will be impregnated with this smell.