Smoke residue is material deposited on surfaces or contents after smoke passes through an area. Its properties depend on what burned and the conditions of the fire.
What this means at your property
Residue can reach adjoining rooms, contents and concealed spaces even where flame damage is limited. A visible film on a smooth surface may respond differently from deposits retained in fabric or unfinished wood.
What should a cleanup assessment document?
Ask for the affected areas and materials, proposed treatment and any test results or limitations. Keep cleaning decisions separate from appliance, electrical or structural checks needed before the property returns to normal use.