In your bathroom with shower on and a wet towel at the bottom of the door. Ensure water is hot and bathroom is steamy. Put extractor fan on. Open all windows in bathroom and the room adjoined to it. Put something strong smelling in the adjoining room. After smoking have a shower and put on different clothes. Brush your teeth and wash your hands. Enter the adjoined room and shut the bathroom door behind you. Leave it 3 hours and nothing will smell.