I lived through a fire. Here are my thoughts:

1. If you smell it, it's because whatever absorbed the odor is giving
it off into the air. So eventually it'll all be gone from whatever
absorbed it. If this were summer you could leave the windows open,
but since it's cold you probably are stuck with only maybe one window
partially open and an exhaust fan. You are better off with air
circulation (i.e., a fan) because just leaving windows open means less
air circulation but still a lot of heat transfer (in other words, your
house gets cold with less productive removal of the smell).

2. Some of the smell is in your nose-- you'll be 'smelling' the smoke
after it's mostly gone because you have memory of it. So it'll smell
worse for you in a week or two than for visitors who have no memory of
it.

3. Porous things absorb smoke-- couches, curtains, carpets, clothing,
towels.

4. Try to keep all the room doors closed to keep the smell where it
started.

It WILL go away, so try not to drive yourself crazy.

Shaun Eli
www.BrainChampagne.com
Brain Champagne: Clever Comedy for Smart Minds (sm)