Open all windows and doors to ventilate the house
Use fans to circulate fresh air
Replace HVAC filters
Clean walls, ceilings, and hard surfaces with vinegar or mild detergent
Wash curtains, bedding, and clothing
Steam clean carpets and upholstery
Sprinkle baking soda on carpets and soft furniture, then vacuum
Place bowls of activated charcoal around the house
Use an air purifier with a HEPA and activated carbon filter
Clean or replace smoke-damaged items
Wash or replace air vents and duct covers
Clean light fixtures, blinds, and baseboards
Empty and clean trash bins and ashtrays
Remove and dispose of heavily smoke-soaked materials
Repaint walls and ceilings with odor-blocking primer if needed
Have ducts professionally cleaned if the smell persists